Find the simple interest on Rs. 4000 at 7.5% for 3 year 3 month . 
 

Principal, P = Rs 4000Rate, R = 7.5% p.a.Time, T = 3 yr 3 months = 3312 = 314 yrs = 134 yrsNow, SI = PRT100=4000 × 7.5 × 13100 × 4=Rs 975

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(the given part)..... . also find the amount.
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