Question

Anuj lent a sum of 240000 to his friend for 4.5 years. If he received 81000 as interest at the end of 4.5 years, what was the annual rate of interest?​
FASSSTRR

Answer 1

Answer:

₹18,000

Step-by-step explanation:

S.I = P×R×T

100

81000 = 240000 × R × 4.5

100

81000 = 10800 × R

R = 81000

10800

R = Rs. 7.5

Hence, annual rate of interest is

S.I = 240000 × 7.5 × 1

100

S.I = Rs. 18,000

Answer 2

Interest(I) = (P*R*T)/100

So, 81000 = (240000*R*4.5)/100

81000 =  1080000R/100

81000*100 = 1080000R

8100000 = 1080000R

8100000/1080000 = R

15/2 = R

Therefore, R = 15/2 = 7.5