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Let the sum invested be Rs. x Therefore, simple interest received = Rs. (x – 5500) According to the question, {(x × 10 × 9)/100} = x – 5500 => 0.9x = x – 5500 => 0.1x = 5500 => x = 5500/0.1 = 55000 Therefore, simple interest received = x – 5500 = 55000– 5500 = Rs. 49500
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A train crosses a pole and a platform of length 576 metres in 12 seconds and 30 seconds, respectively. Find the length of train.
Two trains approach each other at 15 kmph and 25 kmph from 2 places 280 km apart. After how many hours they will meet?
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