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Frequently Asked general Math Questions and Answer

(#M40034566) GENERAL QUESTION Time & Work Keep an EYE

A, B and C can do a piece of work in 24 days, 30 days and 40 days respectively. They began the work together but C left 4 days before the completion of the work. In how many days was the work completed?

Asked In General tagore kommineni (5 years ago)

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(#M40127403) GENERAL QUESTION mixtures Keep an EYE

in what ratio 30% methyl alcohol solution is mixed with 70% methyl alcohol solution so that the resultant solution has 60% solution in it?

Asked In General madhusudhan rao (4 years ago)

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(#M40000172) GENERAL QUESTION Keep an EYE

There is a safe with a 5 digit number as the key. The 4th digit is 4 greater than the second digit, while the 3rd digit is 3 less than the 2nd digit. The 1st digit is thrice the last digit. There are 3 pairs whose sum is 11.

Find the number.

Asked In general Naveen (8 years ago)

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(#M40000170) GENERAL QUESTION Keep an EYE

A person with some money spends 1/3 for cloths, 1/5 of the remaining for food and 1/4 of the remaining for travel. He is left with Rs 100/-. How much did he have with him in the beginning?

Asked In general Naveen (8 years ago)

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(#M40009448) GENERAL QUESTION Keep an EYE

Four litres of phenol is drawn from a can. It is then filled water. Four litres of mixture is drawn again and the bottle is again filled with water. The quantity of phenol now left in the bottle is to that of water is in the ratio 36:13. How much does the bottle hold

Asked In general Vignesh (7 years ago)

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(#M40000160) GENERAL QUESTION Keep an EYE

At 6'o a clock ticks 6 times. The time between first and last ticks is 30 seconds. How long does it tick at 12'o.

Asked In general Naveen (9 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 (2 years ago)

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(#M40008770) GENERAL QUESTION Keep an EYE

A boy has Rs 3. He wins or loses Re 1 at a time If he wins he gets Re 1 and if he loses the game he loses Re 1. He can loose only 3 times. He is out of the game if he earns Rs 5. Find the number of ways in which this is possible?

Asked In general Vignesh (7 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 (9 years ago)

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(#M40096155) GENERAL QUESTION Cricket puzzle Keep an EYE

How many runs a single player can score in One day match (50 overs/ 300 balls)… No ‘no balls’, no wides, no extras, no over throws.

So how much runs he can score max?

Asked In General manasa (4 years ago)

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