UP Police Constable Exam Model Paper 2

Given:
P = Rs. 600, R = 40%, T = 1 year
Formula used:
Compound interest (C.I.) = P [(1+ R/100)${}^{\mathrm{T}}$ -1]
Calculation:
C.I. semi annually
⇒ R = 20%, T = 2 years
Now, C.I. = P [(1+ R/100)${}^{\mathrm{T}}$ -1]
C.I. = 600[(1+ 20/100)${}^2$-1]
⇒ C.I. = Rs. 264