(c) Rs 19448
P = Rs 16000, r = 10% p.a., = 5% per half year n = 2 years = 4 half years
\(\therefore\) Amount = 16000\(\big(1+\frac{5}{100}\big)^4\) = 16000 x \(\big(\frac{21}{20}\big)^4\)
= \(\frac{16000\times194481}{160000}\)
= 19448.10 = Rs 19448 (approx)