A) 1st
B) 2nd
C) 3rd
D) All are equally good
Correct Answer: C
Solution :
Let the marked price be Rs. 100 |
1st payment = 75% of 85% of Rs. 100 |
= Rs. \[\left( \frac{75}{100}\times \frac{85}{100}\times 100 \right)\]= Rs. \[\frac{225}{4}\]= Rs. 63.75 |
2nd payment = 70% of 90% of Rs. 100 |
= Rs. \[\left( \frac{70}{100}\times \frac{90}{100}\times 100 \right)\]= Rs. 63 |
3rd payment = 6 5 % of 9 5 % of Rs. 100 |
= Rs. \[\left( \frac{65}{100}\times \frac{95}{100}\times 100 \right)\]= Rs. 61.75 |
Clearly, 3rd payment is better. |
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