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A train crosses a man standing on the platform in 10 sec while an another train coming in from opposite direction crosses the man in 18 sec. If the length of the second train is one and half times of the first train then in what time will they cross each other?
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A person pays Rs 17000 for a motorcar when a single discount of 15% is provide. How much will he have to pay if he gets two successive discount of 10% and 5% are allowed?
The difference between compound interest (annually) and simple interest on a certain sum at 10% per annum for 2 yrs is Rs 42. What is the sum?
Seats of a cinema hall is increased by 25% and the price of a ticket is increased by 10%. What is the percentage increase in total income?
10 is added to a certain number, the sum is multiplied by 7. The product is divided by 5 and 5 is subtracted from the effective value.that value is equal to half of 88. What is the number
A sum at simple interest, doubles itself in 10 yrs. In how much time will it become triple of the original sum?
A boat (in still water) can row at a speed of 13 km/h. If the speed of the stream is 4 km/h, then how much time will the boat take to row 68 km downstream?
There are 50 students in a class. One boy among them, whose weight is 51 kg leaves the class and a new boy admits in the class. Due to this the average weight of the class increases by 1/2 kg. The weight of newly admitted student is
A is twice efficient than B in a work and B is twice efficient than C. If A and B complete a work in 4 days then C alone can complete that work in
4 examiners examines some answer sheets in 10 days working 5 hours daily. If 2 examiners has to examine double of the answer sheets in 20 days then how many hours will they have to work daily?
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