Masum can do a job in 2 hours. Hashem can do the same job in 3 hours. If they work together , how many hours will it take to do the job?

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A is the widow of B. B & C were the only children of E. C is unmarried and is a doctor. D is the grand-daughter of E and studies science . How is A related to D ?

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If the length and width of a rectangular garden plot were each increased by 20 percent. What would be the percent increase in the area of the plot ?

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If x and y are consecutive positive integers, which of the following must be an even integer ?

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The area of a rectangle is 200 sq. meter . If the length is twice the breadth, what is the perimeter of the rectangle ?

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A company's profits have doubled for each of the last 5 years . If the total profits for the last 5 years were TK. 62 million , what were the profits in the first year ?

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