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A person paid Rs. 17000 for a motor-car after a single discount of 15%. If he is given successive discount of 5% and 10% then how much he would pay ?
Answer & Solution
Correct Answer:
Option
C
Cost price of motor-car = Rs. 17000
Mark price of motor-car
$$\eqalign{ & = {\text{Rs}}{\text{. 17000}} \times \frac{{100}}{{85}}{\text{ }} \cr & = {\text{Rs}}{\text{. 20000}} \cr} $$
After successive discount,Cost price
$$\eqalign{ & = {\text{Rs}}{\text{. 20000}} \times \frac{{95}}{{100}} \times \frac{{90}}{{100}} \cr & = {\text{Rs}}{\text{. 17100 }} \cr} $$
Mark price of motor-car
$$\eqalign{ & = {\text{Rs}}{\text{. 17000}} \times \frac{{100}}{{85}}{\text{ }} \cr & = {\text{Rs}}{\text{. 20000}} \cr} $$
After successive discount,Cost price
$$\eqalign{ & = {\text{Rs}}{\text{. 20000}} \times \frac{{95}}{{100}} \times \frac{{90}}{{100}} \cr & = {\text{Rs}}{\text{. 17100 }} \cr} $$
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