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Frequently Asked general Math Questions and Answer Page 2

(#M40034537) GENERAL QUESTION general Keep an EYE

Find the wrong number in the following series.
10, 21, 43, 85, 175,.....

Asked In General azharshahid01@gmail.com (11 years ago)

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(#M40000181) GENERAL QUESTION Keep an EYE

There are 3 persons X, Y and Z. On some day, X lent tractors to Y and Z as many as they had. After a month Y gave as many tractors to X and Z as many as they have. After a month Z did the same thing. At the end of this transaction each one of them had 24.

Find the tractors each originally had?

Asked In general Naveen (14 years ago)

Solved lilly Read Solution (5)

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(#M40152099) GENERAL QUESTION series Keep an EYE

3,9,29,61,185,373,... ?

Asked In General RAVAL (10 years ago)

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(#M40037990) GENERAL QUESTION HCF and LCM Keep an EYE

How many numbers less than 10,000 are there which is divisible by 21, 35 and 63?

Asked In General Kavi Priya.P (11 years ago)

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(#M40009529) GENERAL QUESTION Keep an EYE

An amount of money is to be distributed among A, B and C in the ratio of 6:19:7 respectively. If C gives Rs. 200/- of his share to B, the ratio among A, B and C becomes 3:10:3 respectively .What was the total amount?

Asked In general Devendra Marghade (13 years ago)

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(#M40142095) GENERAL QUESTION cricket Keep an EYE

two batsmen are on 98 and 97. they need 3 run in 2 ball. both have to complete their hundreds.

Asked In general RAHUL PATIDAR (10 years ago)

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(#M40009575) GENERAL QUESTION Keep an EYE

The digit at units place of a two digit number is increased by 100% and ten's digit of the same number is increased by 50% The new number thus formed is 9 more than the original number. What is the original number?

Asked In general Devendra Marghade (13 years ago)

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(#M40007852) GENERAL QUESTION Harder one? Keep an EYE

Suppose there are 1000 doors namely D1,D2,D3,...,D1000 and there are 1000 persons namely P1,P2,P3,...,P1000. First P1 opens all the doors. Then P2 closes all even numbered doors. P3 changes every third door (i.e., he closes D3, opens D6 and so on). Similarly Pm changes every mth door. Finally P1000 opens D1000 if it were closed, and closes it if it were open.
At the end how many doors remain open

Asked In general Vignesh (13 years ago)

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(#M40157481) GENERAL QUESTION profit Keep an EYE

A builder sold a house at an auction for 4200 and after paying the auctioneer 5% on the selling price he found that he had made a profit of 5% on what the house cost him. How much did the house cost him?
a.3210
b. 2630
c. 3800
d. 2400

Asked In General ARTHI (9 years ago)

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(#M40000163) GENERAL QUESTION Keep an EYE

A person wanted to withdraw X rupees and Y paise from the bank. But cashier made a mistake and gave him Y rupees and X paise. Neither the person nor the cashier noticed that.

After spending 20 paise, the person counts the money. And to his surprise, he has double the amount he wanted to withdraw.

Find X and Y. (1 Rupee = 100 Paise)

Solution

he wants to withdraw x rupee and y paise
but he obtained y rupee and x paise after spending 20 paise remaining amount = y rupee and (x-20) paise
it is given that y rupee (x-20) paise = 2(x rupee y paise)
on comparison we get y = 2x and x-20 = 2y but on solving we shall get x as a negative numbet which is a contradiction
an other case is also possible
y rupee (x-20) paise = 2(x rupee y paise)
so y rupee (x-20) paise = 2(x rupee) 2(y paise)
or y rupee (x-20) paise = (2x+1) rupee (2y-100) paise
y = 2x+1, x-20 = 2y-100
on taking y = 2x+1 in second equation, we get x-20 = 2(2x+1)-100
or x-20 = 4x+2-100 or 3x = 78 or x = 26, y = 53

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Asked In general Naveen (15 years ago)

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