Question

A sum amount to Rs.2400 at 15% simple interest per annum after 4 years. Find the sum. *

Answer 1

Answer:

4000

Step-by-step explanation:

SI=PRT/100

2400=P*15*4/100

2400=P*15/25

2400=P*3/5

2400*5=12000=P*3

P=12000/3=4000 Rs

Answer 2

Step-by-step explanation:

S.I. = P(1 + R/100)^t

= Rs2400(1 + 15/100)^4

= Rs2400(100+15/100)^4

= Rs2400(115/100)^4

= Rs2400 × 115/100 × 115/100 × 115/100 × 115/100

= Rs4197.61