(c) Here, principal (P)=Rs 62500, Time (n) = 112=32 Years = 3 years ( Compounded half yearly)
Rate of interest (R) = 8% = 4% ( Compound half yearly)
Amount (A)=P(1+R100)n=62500(1+4100)3=62500(1+125)3
=62500(2625)3=62500×2625×2625×2625
= Rs 70,304
Compound Interest (C.I) = A - P = Rs 70304 - Rs 62500 = Rs 7,804