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general Math Questions and Answer Page 38

(#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 (14 years ago)

Solved madhuri Read Solution (6)

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(#M40000169) GENERAL QUESTION Keep an EYE

How many ways are there of arranging the sixteen black or white pieces of a standard international chess set on the first two rows of the board?

Given that each pawn is identical and each rook, knight and bishop is identical to its pair.

Asked In general Naveen (14 years ago)

Unsolved Read Solution (1)

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(#M40000180) GENERAL QUESTION Keep an EYE

In a hotel, rooms are numbered from 101 to 550. A room is chosen at random. What is the probability that room number starts with 1, 2 or 3 and ends with 4, 5 or 6?

Asked In general Naveen (15 years ago)

Solved Karthik Pandiyan Read Solution (4)

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(#M40000165) GENERAL QUESTION Keep an EYE

Mr. Subramaniam rents a private car for Andheri-Colaba-Andheri trip. It costs him Rs. 300 everyday. One day the car driver informed Mr. Subramaniam that there were two students from Bandra who wished to go from Bandra to Colaba and back to Bandra. Bandra is halfway between Andheri and Colaba. Mr. Subramaniam asked the driver to let students travel with him. On the first day when they came, Mr. Subramaniam said, "If you tell me the mathematically correct price you should pay individually for your portion of the trip, I will let you travel for free."
How much should the individual student pay for their journey?

Asked In general Naveen (15 years ago)

Solved Karthik Pandiyan Read Solution (8)

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(#M40000164) GENERAL QUESTION Keep an EYE

There is a shortage of tubelights, bulbs and fans in a village - Kharghar. It is found that

All houses do not have either tubelight or bulb or fan.
exactly 19% of houses do not have just one of these.
atleast 67% of houses do not have tubelights.
atleast 83% of houses do not have bulbs.
atleast 73% of houses do not have fans.
What percentage of houses do not have tubelight, bulb and fan?

Asked In general Naveen (15 years ago)

Solved Vadivelan M Read Solution (4)

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(#M40000168) GENERAL QUESTION Keep an EYE

Raj has a jewel chest containing Rings, Pins and Ear-rings. The chest contains 26 pieces. Raj has 2 1/2 times as many rings as pins, and the number of pairs of earrings is 4 less than the number of rings.

How many earrings does Raj have?

Asked In general Naveen (15 years ago)

Solved sathya4046 Read Solution (5)

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(#M40000167) GENERAL QUESTION Keep an EYE

A soldier looses his way in a thick jungle. At random he walks from his camp but mathematically in an interesting fashion.
First he walks one mile East then half mile to North. Then 1/4 mile to West, then 1/8 mile to South and so on making a loop.
Finally how far he is from his camp and in which direction?

Asked In general Naveen (15 years ago)

Solved C.T.Narayanan Read Solution (8)

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(#M40000166) GENERAL QUESTION Keep an EYE

At what time after 4.00 p.m. is the minutes hand of a clock exactly aligned with the hour hand?

Asked In general Naveen (15 years ago)

Solved C.T.Narayanan Read Solution (10)

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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)

Solved Tijo Jose Read Solution (4)

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(#M40000162) GENERAL QUESTION Keep an EYE

however, that the enemy offered to let him choose how he wanted to be killed. They told him, "If you tell a lie, you will put to the sword, and if you tell the truth you will be hanged."

The soldier could make only one statement. He made that statement and went free. What did he say?

Asked In general Naveen (15 years ago)

Solved Tijo Jose Read Solution (3)

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