10 second questions

bobbym · 2012-02-19 02:34:08

Hi ganesh;

Jai Ganesh · 2012-02-20 01:45:13

Hi bobbym,

The solution #3606 is perfect. Excellent!

#3607. The product of two numbers is 9375 and the quotient, when the larger one is divided by the smaller, is 15. Find the sum of the numbers.

#3608. Find the sum of the digits of the smallest number which, when multiplied by 1800, gives a perfect cube.

bobbym · 2012-02-20 05:26:50

Hi;

anonimnystefy · 2012-02-20 05:56:35

hi ganesh

Jai Ganesh · 2012-02-21 01:48:10

Hi bobbym and anonimnystefy,

The solution #3607 is correct (400). Good work!

The solution #3608 is correct (6). Well done, bobbym and anonimnystefy! (bobbym : Your solution too is correct, from the working)

#3609. Two trains 140 meters and 160 meters long run at the speeds of 60 km/hour and 40 km/hour respectively in the opposite directions on parallel tracks. Find the time in seconds which they take to cross each other.

#3610. The population of a town 2 years ago was 62,500. If it decreases every year at the rate of 4%, find the present population of the town.

bobbym · 2012-02-21 02:11:01

Hi ganesh;

Jai Ganesh · 2012-02-22 01:41:31

Hi bobbym,

The solutions #3609 and #3610 are both correct. Excellent!

#3611. In a group of students, 70% can speak English and 65% can speak French. If 27% of the students can speak none of the two languages, then what percent of the group can speak both the languages?

#3612. In an election between two candidates, the candidate getting 60% of the votes polled is elected by a majority of 14,000 votes. What is the number of votes polled by the winning candidate?

bobbym · 2012-02-22 02:11:54

Hi;

Jai Ganesh · 2012-02-23 01:43:49

Hi bobbym,

The

The solution #3612 is perfect. Good work!

#3613. Two students appeared at an examination. One of them secured 9 marks more than the other and his marks were 56% of the sum of their marks. Find the marks obtained by them.

#3614. A sample of 50 liters of glycerine is found to be adulterated to the extent of 20%. How much pure glycerine ought to be added so as to bring down the percentage of impurity to 5%?

bobbym · 2012-02-23 03:45:32

Hi ganesh;

Jai Ganesh · 2012-02-24 01:48:36

Hi bobbym,

The solutions #3613 and #3614 are correct! Excellent!

I shall get back in a day or two.

#3615. 6 men or 12 women can do a piece of work in 20 days. In how many days can 8 men and 16 women do twice as big as this work?

bobbym · 2012-02-24 02:14:52

Hi ganesh;

I shall get back in a day or two.

I will wait for you.

Jai Ganesh · 2012-02-28 01:11:06

Hi bobbym,

The solution #3615 is correct. Excellent!

#3616. A certain number of men can do a work is 60 days. If there were eight more men, it could be completed in 10 days less. How many men were there in the beginning?

#3617. List price of an article at a show room is $2,000 and is being sold at successive discounts of 20% and 10%. What would be its net selling price?

bobbym · 2012-02-28 02:50:43

Hi ganesh;

Denominator · 2012-03-22 17:16:25

Hey guys,

Jai Ganesh · 2012-03-31 17:55:18

Hi bobbym and Denominator,

The solutions #3167 and #3168 are correct. Brilliant!

#3168. Find the positive value of x if

.

#3169. If

, then

anonimnystefy · 2012-03-31 22:33:31

Hi ganesh

Glad to see you posting again!

Jai Ganesh · 2012-04-02 00:46:05

Hi anonimnystefy,

The solutions #3168 and #3169 are both correct. Brilliant!

#3070.

#3071. If

of a number exceeds its by 8, find the number.

anonimnystefy · 2012-04-02 01:23:06

Hi ganesh

Last edited by anonimnystefy (2012-04-02 14:39:22)

John E. Franklin · 2012-04-02 14:30:17

anonimnystefy · 2012-04-02 14:34:51

Hi JEF

Why are you peaking? You should only check by peaking!

John E. Franklin · 2012-04-02 14:35:04

Jai Ganesh · 2012-04-02 20:48:43

Hi anonimnystefy and John E. Franklin,

The solutions #3070 and #3071 are both correct. Excellent!

#3072. Find the value of

.

#3073. Find the greatest fraction among

.

anonimnystefy · 2012-04-02 21:15:33

Hi ganesh

Jai Ganesh · 2012-04-03 01:33:29

Hi anonimnystefy,

The solution #3072 I get is

.

The solution #3073 is correct. Good work!

#3074. The ratio of the ages of Stephen and Gabriel is 6 : 5 and the sum of their ages is 44 years. What would be the ratio of their ages after 8 years?

Math Is Fun Forum

#3676 2012-02-19 02:34:08

Re: 10 second questions

#3677 2012-02-20 01:45:13

Re: 10 second questions

#3678 2012-02-20 05:26:50

Re: 10 second questions

#3679 2012-02-20 05:56:35

Re: 10 second questions

#3680 2012-02-21 01:48:10

Re: 10 second questions

#3681 2012-02-21 02:11:01

Re: 10 second questions

#3682 2012-02-22 01:41:31

Re: 10 second questions

#3683 2012-02-22 02:11:54

Re: 10 second questions

#3684 2012-02-23 01:43:49

Re: 10 second questions

#3685 2012-02-23 03:45:32

Re: 10 second questions

#3686 2012-02-24 01:48:36

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#3687 2012-02-24 02:14:52

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#3688 2012-02-28 01:11:06

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#3689 2012-02-28 02:50:43

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#3690 2012-03-22 17:16:25

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#3691 2012-03-31 17:55:18

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#3692 2012-03-31 22:33:31

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#3693 2012-04-02 00:46:05

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#3694 2012-04-02 01:23:06

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#3695 2012-04-02 14:30:17

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#3696 2012-04-02 14:34:51

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#3697 2012-04-02 14:35:04

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#3698 2012-04-02 20:48:43

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#3699 2012-04-02 21:15:33

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