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

The distance that light travels in one year is approximately 5,870,000,000,000 miles.

On a game show, a contestant is given three keys, each of which opens exactly one of three identical boxes.

The three competitors in a race have to be randomly chosen from a group of three men and three women.

For a race a distance of 224 meters can be covered by P in 28 seconds and Q in 32 seconds.

If B and C are digits and 8BC is a 3-digit number that is divisible by 7, which of the following is a possible product of B and C?

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Ratio of two numbers x and y is 3:7.

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The difference between a two-digit number and the number after interchanging the position of the two digits is 27.

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When positive integer m is divided by positive integer n, the remainder is 12.

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Q is an much younger than R as he is older than T.

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There are 15 members in a family. it takes 180 days for a women to complete the work, however man completes in 120 days.

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A person purchased a TV set for Rs. 1600 and a DVD player for Rs.

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A 340-liter solution of Kola is made from 75% water, 5% concentrated Kola and the rest is made from sugar.

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There are three vessels of equal capacity .

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The Avg age of a class of 22 subject areas in 21 years.

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If log 27 = 1.437, then the value of log 9 is:

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A three-digit code for certain locks uses the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 according to the following constraints.

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A envelop weight 8.5 gm,if 850 of these envelop are sent with an advertisement mail.

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Find the ratio in which rice at Rs.7.20 a kg be mixed with rice at Rs.5.70 a kg to produce a mixture worth Rs.6.30 a kg?

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Tanya prepared 5 different letters to 5 different addresses.

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A tank is filled in 10 hours by three pipes A, B and C.

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The average weight of 8 people increases by 2.5 kg when a new person comes in place of one of them weighing 85 kg.

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If the price of gasoline increases by 20% and a driver intends to spend only 14% more on gasoline, by how much percent should the driver reduce the quantity of gasoline that he buys?

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There are 2 sections A and B in a class, consisting of 50 and 40 students respectively.

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An escalator moves towards the top level at the rate of 12 ft.sec and its length is 150 feet.

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