Question

find interest and amount on Rs 4200 for 3years at rate of 7 p.c.p.a​

Answer 1

Answer:

given principal (p) = Rs.4200

rate (R) =7%

Time (T)=3year

(PxRxT)/100

4200x7x3/100

Rs.= 882

Answer 2

Solution!!

The concept of simple interest and amount has to be used here. The principal, time and rate of interest is given. We have to find the interest and the amount.

Principal (P) = Rs 4200

Rate of interest (R) = 7%

Time (T) = 3 years

Interest = (P × R × T)/100

Interest = (4200 × 7 × 3)/100

Interest = 42 × 7 × 3

Interest = Rs 882

We know the interest. Now, we can easily find out the amount.

Amount = Principal + Interest

Amount = Rs 4200 + Rs 882

Amount = Rs 5082

Formulae used:-

→ Interest = (P × R × T)/100

→ Amount = Principal + Interest