in what time will the simple interest on rupees 400 at 100 10% per annum be the same as the simple interest on rupees 1000 for 4 years at 4% per annum
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Simple interest accumulation factor :
Principle × rate × time
First scenario :
400 × 10/100 × Time = 40t
Second scenario : 1000 × 4 × 4/100
= 160
40t = 160
t = 160/40 = 4
4 years
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