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

A contractor agreeing to finish a work in 150 days, employed 75 men each working 8 hours daily.

Steve Purchased a house for $15000 and he like to resell it with 20% profit.

A certain company items price list has an average of 6 and a standard deviation of d (d is positive).

In how many ways can the letters of the word JUPITER be arranged in a row so that the vowels appear in alphabetic order?

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Eight identical machines can produce 360 aluminum cans per hour.

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If s and t are positive integers such that s/t = 64.28, which of the following could be the remainder when s is divided by t?

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If Bill can buy 3 pairs of jeans and 2 shirts for $69 or 2 pairs of jeans and 3 shirts for $81, how much does one shirt cost?

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In May, the grounds keeper at Spring Lake Golf Club built a circular green with an area of 49π square feet.

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8 * 8 * 8 * 8 = 2^ ?

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A wheel makes 1200 revolutions in covering a distance of 60 km.

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(2^2-1)(2^2+1)(2^4+1)(2^11+1)=

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Pipe A can fill a tank in 4 hours, pipe B in 8 hours, and pipe C in 24 hours.

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The average age of husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 24 years.

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Jar Y has 10% more marbles than Jar X .

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During the first week of performances of a certain play, 5,400 tickets were sold, all at reduced price.

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In an interview , the probability of appointing Husband is 1/5 while that of wife is

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What is the sum which earned interest?

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A is thrice as good a workman as B and therefore is able to finish a job in 40 days less than B. working together, they can do it in

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The sum of 36 hours 45 minutes and 12 hours 15 minutes is approximately what percent of a week?

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Positive integer p has n factors; 3p has 3 factors; Which of the following values can n take?

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What least number should be subtracted from 13604 such that the remainder is divisible by 87 ?

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In a box of 7 pencils, a total of 2 are defective.

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If 22 percent of the students at a certain school went to a camping trip and took more than $100, and 75 percent of the students who went to the camping trip did not take more than $100, what percentage of the students at the school went to the camping trip?

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A student chose a number, multiplied it by 8, then subtracted 138 from the result and got 102.

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