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The name of the satellite is Xihe which is also known as Chinese Hα Solar Explorer (CHASE). It is the first solar exploration satellite developed by the China Aerospace Science and Technology Corporation (CASC).
What will be the ratio of simple interest earned by certain amount at the same rate of interest for 4 years and 6 years ?
A certain sum of money will be doubled in 80 years at the rate of simple interest percent per annum is: