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#3251 2011-10-20 22:29:27
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3252 2011-10-22 00:19:57
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,418
Re: 10 second questions
Hi bobbym,
The solutions #3326 and #3327 are perfect. Good work!
#3328. A square is converted into a rectangle by increasing the length of the square by 15% and decreasing its breadth by 15%. What is the ratio of the area of the rectangle to that of a square?
#3329. If a person pays $60 every month for 5 years, at the rate of 10% simple interest per annum, what is the actual amount of interest he is to get?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3253 2011-10-22 01:34:16
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3254 2011-10-23 00:43:20
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,418
Re: 10 second questions
Hi bobbym,
The solution #3328 is perfect. Good work!
The
#3330. A's age is 1/4 of B's and B's age is 1/3 of C's. If their total age is 85 years, what is B's age?
#3331. What is the least number, which leaves the remainder 45, when divided by 63 or 105 or 180?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3255 2011-10-23 00:59:26
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3256 2011-10-23 23:41:49
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,418
Re: 10 second questions
Hi bobbym,
The solution #3330 is correct. Good work!
The solution #3331 I get is .
#3332. What is the length of the longest pole that can be placed in a room of dimensions 8 cm x 6 cm x 5 cm?
#3333. In an examination, 70% of the students pass in Mathematics, 60% pass in Physics, and 40% pass in both. What percentage of students fail in both Mathematics and Physics?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3257 2011-10-24 00:32:04
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3258 2011-10-24 23:41:56
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,418
Re: 10 second questions
Hi bobbym,
The solutions #3332 and #3333 are perfect. Good work!
#3334. A person travels a fixed distance from town A to town B at the speed of 45 km/hour and travels back from B to A at the speed of 30 km/hour. What is his average speed in the entire journey?
#3335. Three persons A, B, and C can complete a job in 15 days. They work together for 5 days and then A leaves the work. B and C completed the job in 15 days more than A alone can complete the job in how many days?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3259 2011-10-25 00:05:24
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3260 2011-10-25 23:24:13
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,418
Re: 10 second questions
Hi bobbym,
The solution #3334 is correct. Good work!
The
#3336. The average weight of 150 students in a class is 60 kg. The average weight of the boys in the class is 70 kg and that of girls is 55 kg. Find the number of boys and girls.
#3337. A rectangular garden is 82 meters by 68 meters. Ram walks round at the rate of 2.5 km/hour. How much time would he take to make 5 rounds?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3261 2011-10-25 23:58:16
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
Thanks for the solution to #3335!
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3262 2011-10-26 23:56:03
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,418
Re: 10 second questions
Hi bobbym,
The solutions #3336 and #3337 are correct. Well done!
#3338. The area of sector of a circle of radius 14 cm is 154 cm[sup]2[/sup]. Find its perimeter.
(Use
#3339. A man had $4560. He spent 20% of his money and then he spent $82 and x% of the remainder. If $3031.10 was left with him, that is the value of x?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3263 2011-10-27 00:04:37
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3264 2011-10-27 00:57:57
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,418
Re: 10 second questions
Hi bobbym,
The solution #3339 is perfect. Good work!
#3340. If 65 % of x is 52, what is the value of x?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3265 2011-10-27 01:18:09
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
For #3338 I did not know that you include the two radii. I assumed perimeter was the same as arc length.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3266 2011-10-27 23:37:05
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,418
Re: 10 second questions
Hi bobbym,
The solution #3340 is correct. Well done!
#3341. In a two-digit number, it is known that its unit digit exceeds its tens digit by 2 and that the product of the desired number and the sum of its digits is equal to 144, then find the number.
#3342. A reduction of 10 % in the price of sugar enables a householder to ontain 3 kg more for $225. What is the reduced per kg of sugar?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3267 2011-10-27 23:56:55
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3268 2011-10-28 23:10:04
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,418
Re: 10 second questions
Hi bobbym,
The solutions #3341 and #3342 are correct. Excellent!
#3343. Three numbers are in the ratio 1:2:3 and their product is 20250. Find the numbers.
#3344. The area of a circle is 220 square centimeters. What is the area of a square inscribed in this circle?
(Use
)It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3269 2011-10-28 23:19:55
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3270 2011-10-29 16:37:51
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,418
Re: 10 second questions
Hi bobbym,
The solutions #3343 and #3344 are correct. Excellent!
(The solution #3344 I get is 140 square centimeters)
#3345. The area of a circle inscrbed in an equilateral triangle is
square centimeters. Find the perimeter of the triangle.#3346. Let m and n be two whole numbers. If m[sup]n[/sup] = 25, what is the value of n[sup]m[/sup]?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3271 2011-10-29 22:15:46
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3272 2011-10-30 01:36:01
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,418
Re: 10 second questions
Hi bobbym,
The solutions #3345 and #3346 are correct. Smart work!
#3347. The circumference of a circle is 100 centimeters. What is the side of a square inscribed in the circle?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3273 2011-10-30 04:20:56
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3274 2011-10-31 02:28:42
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,418
Re: 10 second questions
Hi bobbym,
The solution #3347 is correct. Excellent!
#3348. If a - b = 10 and ab = 50, what is
?#3349.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3275 2011-10-31 03:06:49
- Arthur Bon Zavi
- Member
- Registered: 2011-10-30
- Posts: 121
Re: 10 second questions
Hi bobbym,
The solution #3347 is correct. Excellent!
#3348. If a - b = 10 and ab = 50, what is
?#3349.
Last edited by Arthur Bon Zavi (2011-10-31 03:07:12)
In the heart of the night, when it's dark in the lights; I heard the loudest voice - a gun shot on the floor.
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