a) Rs. 18200
b) Rs. 17200
c) Rs. 17800
d) Rs. 16800
Answer: c
Explanation: Total price of TV = Rs. 16000
Initial payment = Rs. 4000
Remaining amount = Rs. 12000
Simple interest in 15 months for Rs. 12000
$$\eqalign{
& {\text{S}}{\text{.I}}{\text{. = }}\frac{{{\text{P}} \times {\text{R}} \times {\text{T}}}}{{100}} \cr
& {\text{S}}{\text{.I}}{\text{. = }}\frac{{12000 \times 12 \times 15}}{{100 \times 12}} \cr
& {\text{S}}{\text{.I}}{\text{. = Rs}}{\text{. 1800}} \cr} $$
With S.I. total amount to be paid for principal amount Rs. 12000
= Rs. (12000 + 1800)
= Rs. 13800
Total amount he pays for the TV is
= 4000 + 13800
= Rs. 17800
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