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

A sum of money invested at C.I. amounts to Rs. 800 in 3 years to Rs. 840 in 4 years.

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In 10 years, A will be twice as old as B was 10 years ago.

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If y^2 - x^2 = 2xy, then (x+y)^2 =

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If 1 persons can do 1 times of a particular work in 1 day, then, 7 persons can do 7 times of that work in

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The speed of a train is 94 kmph.

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5, 9, 17, 29, 45, ?

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What is the two-digit number?

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During a two-week period, the price of an ounce of silver increased by 10 percent by the end of the first week and then decreased by 10 percent of this new price by the end of the second week.

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In a game, one player throws two fair, six-sided die at the same time.

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By selling an article at Rs.600, a profit of 60% is made.

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If d is the mean of x, y, and z, what is the mean of x + 5, y + 5, z + 5 ?

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The remainder of the division of a number by 63 is 27.

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The probability that a visitor at the mall buys a pack of candy is 30%.

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Which of the following is closest to the difference between sum R of all proper fractions (fractions less than 1) in the form 1/x , where x is a positive digit, and the product of all proper fractions in the form y/(y+1), where y is a positive digit?

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If a - b = 4 and a2 + b2 = 18, find the value of ab.

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Two cars A and B start from Boston and New York respectively simultaneously and travel towards each other at constant speeds along the same route.

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The marked price of an article is 10% higher than the cost price.

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The sale price sarees listed for Rs.400 after successive discount is 30% and 20% is?

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A shopkeeper sold an book offering a discount of 5% and earned a profit of 30%.

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How many digits 2^200 has?

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The volume of a cistern is 840 cubic meters and water is flowing into the cistern.

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A library has an average of 510 visitors on Sundays and 240 on other day.

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A $89.95 lawn chair was sold for $59.95 at a special sale.

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What is the lowest positive integer that is divisible by 1 through 3, inclusive?

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