Q. A car travels 80 km. in 2 hours and a train travels 180 km. In 3 hours. The ratio of the speed of the car to that of the train is ?
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Q. The compound interest on Rs. 30000 at 7% per annum for a certain time is Rs. 4347. The time is
Q. If the 3rd and the 5th term of an arithmetic progression are 13 and 21, what is the 13th term?
Q. What sum of money will amount to Rs. 520 in 5 years and to Rs. 568 in 7 years at simple interest?
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