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

A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes.

A man sells a car to his friend at 15% loss.

If (4x + y)/(x + 4y) = 2/3, then find the value of (x + 4y)/(4x + y).

A jar contains only red, yellow, and orange marbles.

If the President and Vice President must sit next to each other in a row with 6 other members of the Board, how many different seating arrangements are possible?

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0.35 represents what percent of 0.005?

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A train passes a station platform in 60 sec and a man standing on the platform in 20 sec.

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An empty pool being filled with water at a constant rate takes 8hours to fill to 3/7 of its capacity.how much more time will it take to finish filling the pool?

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There are 12 slate rocks, 16 pumice rocks, and 8 granite rocks randomly distributed in a certain field.

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If a quarter kg of potato costs 60 yen, how many paise will 200 gm cost?

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There are 50 doors marked with numbers 1 to 50.

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A hiker walked for 3 days. She walked 18 miles on the first day, walking 3 miles per hour.

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A cat leaps 6 leaps for every 5 leaps of a dog, but 2 leaps of the dog are equal to 3 leaps of the cat.

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Kate and Danny each have $10.

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How many quarters are equal to 2 dollars?

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I walk a certain distance and ride back taking a total time of 37 minutes.

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A shop owner professes to sell his articles at certain cost price but he uses false weights with which he cheats by 20% while buying and by 20% while selling.

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A rectangular plot measuring 90 metres by 60 metres is to be enclosed by wire fencing.

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A 300 metre long train crosses a platform in 39 seconds while it crosses a signal pole in 18 seconds.

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A football field is 10800 square yards.

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An old man distributed all the gold coins he had to his two sons into two different numbers such that the difference between the squares of the two numbers is 81 times the difference between the two numbers.

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Gwen drove an average speed of 15 miles per hour for the first 40 miles of a tripthen at a average speed of 30 miles/hr for the remaining 40 miles of the trip if she made no stops during the trip what was Gwen's avg speed in miles/hr for the entire trip

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If the product of two numbers is 51216 and their H.C.F. is 33, find their L.C.M.

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How many times digit 6 is used while writing numbers from 100 to 1400?

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