Question

calculate the difference between the compound interest and simple interest on rupees 12000 at 9% per annum in 2 years​

Answer 1

Step-by-step explanation:

Answer

hint.

P=7500       CI−SI=12

T=2yr

SI=100PRT=1007500×R×2=150R

CI=p(1+100x)2−P=7500[(1+100x2)−1]

⇒7500(1+100×100R2+1002R−1)−150R=12

⇒43R2+150R−150R=12

⇒R2=312×4=10  So R=4%