Q&Answers: Math/Chemistry/Physics Problems + Solutions

If n is a positive integer, what is the remainder when (7^(4n+3))(3^n) is divided by 10?

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When 6 + 2 = 85, 8 + 3 = 115, 7 + 5 = 125, then 5 + 8 = ?

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A honey bee flies for 10 seconds, from a daisy to a rose.

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For all numbers c and d, the operation @ is defined by c@d = c^2 - cd.

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Have a look at the formula P = nRT/V.

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John walking at 4 Kmph reaches his office 8 minutes late.

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One fill pipe A is 3 times faster than second fill pipe B and takes 10 minutes less time to fill a cistern than B takes.

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Thurston wrote an important seven-digit phone number on a napkin, but the last three numbers got smudged.

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What is the least integer greater than 0+0.5?

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Mathematics, physics, and chemistry books are stored on a library shelf that can accommodate 25 books.

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A train covers a certain distance at a speed of 200kmph in 4 hours.

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Two bus tickets from city A to B and three tickets from city A to C cost Rs. 308 but three tickets from city A to B and two tickets from city A to C cost Rs.

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What is the next number of the following sequence.

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A train 500 m long passes a man, running at 9 km/hr in the same direction in which the train is going, in 20seconds.

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How many ways are there for 3 males and 4 females to sit (around a circular table) if no male should sit next to a male (and no female next to female) and Mary wants to sit with her back on the wall?

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Think of a number, divide it by 6 and add 5 to it.

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The distance from City A to City B is 180 miles.

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If the perimeter of a rectangular garden is 1200 m, its length when its breadth is 240 m is?

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It takes Johnson 10 minutes to walk to the car park and 20 min to drive to work.

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What is the least value of integer N such that N!

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Mr Yadav spends 60% of his monthly salary on consumable items and 50% of the remaining on clothes and transport.

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Two men started from the same place walk at the rate of 10kmph and 12kmph respectively.

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If the population of a certain country increases at the rate of one person every 20 seconds, by how many persons does the population increase in 1 hour?

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If * stands for /, / stands for -, + stands for * and - stands for +, then

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