Question

Find the sum on which the
Compound
interest for 3 years
at 10% per annum amounts
to ₹1,665.​

Answer 1

Answer:

Let, the sum =P.

Given time (n)=3 years.

Rate of interest (r)=10%.

C.I. = Rs. 1655

Since, Amount (A)=P(1+100r)n

⇒A=P(1+10010)3

⇒A=P(1011)3=(10001331)P

Also, A−P= C.I.

⇒(10001331)P−P =1655

⇒(1000331)P =1655

⇒P= Rs. 5000

Answer 2

Answer:

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