10 second questions

bobbym · 2011-09-30 00:33:45

Hi;

Jai Ganesh · 2011-10-01 00:54:54

Hi bobbym,

The solution #3284 is correct. Well done!

The solution

#3286. A shopkeeper expects a gain of 22.5 % on his cost price. If in a week, his sale was $392, what was his profit?

#3287. The sale price of an article including the sale tax is $616. The rate of sales tax is 10%. If the shopkeeper has made a profit of 12%, then what is the cost price of the article?

bobbym · 2011-10-01 00:59:39

Hi ganesh;

Jai Ganesh · 2011-10-01 23:24:18

Hi bobbym,

The solution #3287 is correct. Excellent!

#3288. A trader buys a chair for $600 and sells it for $765 at a credit of 4 months. Reckoning money worth 6% per annum, what is his gain percent?

#3289. When a plot is sold for $18,700, the owner loses 15%. At what price must the plot be sold in order to gain 15%?

bobbym · 2011-10-01 23:33:22

Hi;

Jai Ganesh · 2011-10-03 00:26:49

Hi bobbym,

The solution #3289 is correct. Excellent!

#3290. If the Selling Price of an article is

of its cost price, what is the profit in the transaction (%)?

#3291. The ratio of the cost price and the selling price is 4:5. Find the profit percent.

bobbym · 2011-10-03 00:39:17

Hi ganesh;

Thanks for help! I only get slightly less than half of these money problems right.

Jai Ganesh · 2011-10-03 23:14:58

Hi bobbym,

The solution #3290 is correct. Well done!

#3292. The present ages of three persons are in the proportions 4:7:9. Eight years ago, the sum of the ages was 56. Find their present ages (in years).

#3293. The ratio of the ages of a man and his wife is 4:3. After 4 years, this ratio would be 9:7. If at the times of marriags, the ratio was 5:3, then how many years ago were they married?

bobbym · 2011-10-03 23:41:08

Hi;

bobbym · 2011-10-03 23:44:03

Hi;

Jai Ganesh · 2011-10-04 23:16:30

Hi bobbym,

The solutions #3292 and #3293 are correct. Excellent!

#3294. A cubic centimeter of iron is drawn into a wire of diameter 3.5 millimeters. Find the length of the wire. (Use

)

#3295. If

, find .

bobbym · 2011-10-04 23:44:00

Hi ganesh;

Jai Ganesh · 2011-10-06 00:12:42

Hi bobbym,

The solutions #3294 and #3295 are perfect. Excellent!

#3296. Find the point that divides the line joining (3,4), and (-6,2) externally in the ratio 1:3.

#3297. Prove that the lines 3x + 4y + 7 = 0 and 28x - 21y + 50 = 0 are perpendicular to each other.

bobbym · 2011-10-06 00:24:47

Hi;

Jai Ganesh · 2011-10-06 00:41:51

Hi bobbym,

The

The solution #3298 is correct. Well done!

#3299. X and Y appeared in an interview. The chance of X's selection is 1/5 and Y's selection is 1/7. Find the chance that none of them are selected.

bobbym · 2011-10-06 00:45:37

Hi;

Jai Ganesh · 2011-10-07 00:17:20

Hi bobbym,

The solution #3299 is correct. Good work!

#3300. Find the quotient and remainder when

is divided by (x + 1) using synthetic division.

#3301. Find the square root of

.

bobbym · 2011-10-07 00:28:46

Hi;

Howardroark · 2011-10-07 05:00:02

Hi ganesh,

Howardroark · 2011-10-07 05:01:04

Hi,

Jai Ganesh · 2011-10-08 01:47:37

Hi bobbym and Howardroark,

The solutions #3300 and #3301 are perfect. Excellent!

#3302. Find the sum of all multiples of 9 between 400 and 600.

#3303. A hemispherical bowl of radius 30 cm is filled with soap paste. If paste is made into cylindrical soap cakes each of radius 5 cm and height 2 cm, how many cakes do we get?

bobbym · 2011-10-08 01:58:50

Hi;

Jai Ganesh · 2011-10-09 00:10:43

Hi bobbym,

The solutions #3302 and #3303 are perfect. Excellent!

#3304. Find the sum to n terms of the Geometric Progression 3 + (-6) + 12 + ....

#3305. Determine whether (x - 1) is a factor of

.

anonimnystefy · 2011-10-09 00:16:11

hi ganesh

Last edited by anonimnystefy (2011-10-09 00:19:49)

bobbym · 2011-10-09 00:25:40

Hi ganesh;

Math Is Fun Forum

#3201 2011-09-30 00:33:45

Re: 10 second questions

#3202 2011-10-01 00:54:54

Re: 10 second questions

#3203 2011-10-01 00:59:39

Re: 10 second questions

#3204 2011-10-01 23:24:18

Re: 10 second questions

#3205 2011-10-01 23:33:22

Re: 10 second questions

#3206 2011-10-03 00:26:49

Re: 10 second questions

#3207 2011-10-03 00:39:17

Re: 10 second questions

#3208 2011-10-03 23:14:58

Re: 10 second questions

#3209 2011-10-03 23:41:08

Re: 10 second questions

#3210 2011-10-03 23:44:03

Re: 10 second questions

#3211 2011-10-04 23:16:30

Re: 10 second questions

#3212 2011-10-04 23:44:00

Re: 10 second questions

#3213 2011-10-06 00:12:42

Re: 10 second questions

#3214 2011-10-06 00:24:47

Re: 10 second questions

#3215 2011-10-06 00:41:51

Re: 10 second questions

#3216 2011-10-06 00:45:37

Re: 10 second questions

#3217 2011-10-07 00:17:20

Re: 10 second questions

#3218 2011-10-07 00:28:46

Re: 10 second questions

#3219 2011-10-07 05:00:02

Re: 10 second questions

#3220 2011-10-07 05:01:04

Re: 10 second questions

#3221 2011-10-08 01:47:37

Re: 10 second questions

#3222 2011-10-08 01:58:50

Re: 10 second questions

#3223 2011-10-09 00:10:43

Re: 10 second questions

#3224 2011-10-09 00:16:11

Re: 10 second questions

#3225 2011-10-09 00:25:40

Re: 10 second questions

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