in what time will the SI on rupees 400 at 10% per annum be the same as the SI on rupees 1000for four years at 4% per annum
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Step-by-step explanation:
S.I = PTR/100
PTR/100 = PTR/100
400 * T * 10/100= 1000 * 4 * 4/100
40T = 160
T=160/40
Therefore, T= 4 years
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