Question

Q2 At what rate of interest per annum will a sum of Rs 8000 amount to Rs

9260 in 312


years?​

Answer 1

Hello here is your answer by Janhavi kakade ☝☝☝☝☝

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Let rate of interest=r%Time(t)=312

years=7/2 years=3.5

yearsPrincipal amount(P)=Rs 8000

Total amount=Rs 9260

So,  

S.I.=Rs 9260−Rs 8000=Rs 1260

Now,

S.I.=P×r×t100⇒1260=8000×r×3.5100

r=1260×1008000×3.5⇒

r=4.5 %

that's all

Answer 2

Answer:

180 rs per installment ..... interest

per annum

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