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

210 college students were asked in a survey if they preferred Windows or Mac brand computers.

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A boy was asked to find the arithmetic mean of the numbers 23, 17, 19, 25, 23, 18, 29, 27, 31 and P.

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The workforce of Company X is 60% female.

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Sanya prepared 4 different letters to 4 different addresses.

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25% of 30% of 45% is equal to?

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A boy goes to his school from his house at a speed of 3km/hr and return at a speed of 2km/hr.

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The average of 11 numbers is 10.9.

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If 4 cats can kill 4 rats in 4 minutes, how long will it take 100 cats to kill 100 rats?

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A housing society has been allotted a square piece of land measuring 2550.25 sq.m.

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If the tens digit x and the units digit y of a positive integer n are reversed, the resulting integer is 36 more than n.

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Find the value of (45 + 23/89) × 89

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if log 3 = 0.47712, the number of digits in 3128 is

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A and B started a business investing Rs. 90,000 and Rs 20,000 respectively.

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The set S has 36 different subsets each of which contains exactly two elements.

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Victor's job requires him to complete a series of identical jobs.

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A box measuring 90 inches long by 45 inches wide by 9 inches deep is to be filled entirely with identical cubes.

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A car travels at a speed of 65 miles per hour.

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A truck owner will refuel his vehicle at a rate of 2 gallons of diesel fuel every 5 seconds.

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Exactly 12% of the reporters for a certain wire service cover local politics in Country X.

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When two dice are rolled, what is the probability that the sum is either 7 or 11?

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A can do a particular work in 6 days .

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what is the angle between the hands of a clock when time is 8:20?

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John want to buy a $100 Trouser at the store, but he think it’s too expensive.

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If a car went the first third of the distance at 80 kmh, the second third at 15 kmh, and the last third at 48 kmh, what was the average speed of the car for the entire trip?

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