Math Is Fun Forum

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.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,385

Re: 10 second questions

Hi bobbym,

The solution #3403 is perfect. Well done!

#3404. Find the average of all the numbers between 6 and 34 which are divisible by 5.

#3405. The average of 11 results is 50. If the average of the first six results is 59 and the last six results is 42, find the sixth result.

---

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.

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.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,385

Re: 10 second questions

Hi bobbym,

The solutions #3404 and #3405 are correct. Excellent!

#3406. A man, riding a bicycle at a speed of 16 kilometers per hour, can reach a place in 3 hours. If he is delayed by half an hour at the start, at what speed he should ride to reach the place in time?

---

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.

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.

phrontister

Real Member

From: The Land of Tomorrow

Registered: 2009-07-12

Posts: 4,876

Re: 10 second questions

Hi ganesh,

Thanks for getting back to us about #3392. Nice to know we were on the right track.

---

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,385

Re: 10 second questions

Hi bobbym and phrontister,

bobbym : #3406 is correct. Excellent!

phrontister : The solutions #3393 to #3406 are all correct. Tremendous performance! Keep up the good work!

#3407. A craftsman made a certain number of dills at a total cost of $840. By selling them at $9 each, he made a profit of

%. How many dolls did he make?

---

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.

phrontister

Real Member

From: The Land of Tomorrow

Registered: 2009-07-12

Posts: 4,876

Re: 10 second questions

Hi ganesh,

---

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

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.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,385

Re: 10 second questions

Hi phrontister and bobbym,

The solution #3407 is correct. Brilliant!

#3408. On an order of 5 dozen boxes of a consumer product, a retiler receives an extra dozen free. This is equivalent to allowing him a discount of what percent?

#3409. One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, in what time can the slower pipe alone be able to fill the tank?

---

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.

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.

phrontister

Real Member

From: The Land of Tomorrow

Registered: 2009-07-12

Posts: 4,876

Re: 10 second questions

Hi ganesh,

---

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,385

Re: 10 second questions

Hi bobbym and phrontister,

The solutions #3408 and #3409 are correct. Spectacular!

#3410. The average weight of 25 members is 62 kilograms. If the average weight of the first 12 members is 60 kilograms and that of the last 12 members is 65 kilograms; find the weight of the 13th member.

#3411. If log 2 = 0.30103, find the number of digits in 2[sup]64[/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.

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.

phrontister

Real Member

From: The Land of Tomorrow

Registered: 2009-07-12

Posts: 4,876

Re: 10 second questions

Hi ganesh,

Last edited by phrontister (2011-11-22 21:27:15)

---

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,385

Re: 10 second questions

Hi bobbym and phrontister,

The solutions #3410 and #3411 (20 digits) are perfect. Excellent!

#3412. One half of a number is 17 more than one-third of that number. What is the number?

#3413. A much travelled man has spent 1/3 of his life in in Bangaluru, 1/6 in Chennai, 1/4 in Kolkata, 1 3/4 years in Mumbai, and 1/5 in New Delhi. If the present year is 1983, in which year was he born?

---

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.

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.

phrontister

Real Member

From: The Land of Tomorrow

Registered: 2009-07-12

Posts: 4,876

Re: 10 second questions

Hi ganesh,

Last edited by phrontister (2011-11-23 01:45:24)

---

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,385

Re: 10 second questions

Hi bobbym and phronsiter,

The solutions #3412 and #3413 are correct. Tremendous performance!

#3414. In a camp, there is provision for 1600 participants for 60 days. How many days would the provision last for 1200 participants?

#3415. If 4 men or 7 boys can do a work in 29 days, in what time in days would 12 men and 8 boys take to do the same work?

---

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.

phrontister

Real Member

From: The Land of Tomorrow

Registered: 2009-07-12

Posts: 4,876

Re: 10 second questions

Hi ganesh,

---

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

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.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,385

Re: 10 second questions

Hi phrontister and bobbym,

The solutions #3414 and #3415 are correct. Immaculate!

#3416. If three secretaries can type six manuscripts in twelve days, in how many days would it take for two secretaries to type three such manuscripts?

#3417. Thirty prizes were distributed to 5% of the original entrants in a contest. Assuming one prize per person, what is the number of entrants in this contest?

---

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.

phrontister

Real Member

From: The Land of Tomorrow

Registered: 2009-07-12

Posts: 4,876

Re: 10 second questions

Hi ganesh,

---

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

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.

phrontister

Real Member

From: The Land of Tomorrow

Registered: 2009-07-12

Posts: 4,876

Re: 10 second questions

Hi ganesh,

---

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson