A) 20
B) 24
C) 25
D) 28
Correct Answer: A
Solution :
MP = Rs. 690 and discount = 10% |
\[\therefore \] SP = 90% of Rs. 690 = Rs.\[\left( \frac{90}{100}\times 690 \right)\] |
= Rs. 621 |
Now, SP = Rs. 621 and gain per cent = 8% |
\[\therefore \] CP = Rs. \[\left( \frac{100}{108}\times 621 \right)\]= Rs. 575 |
Now, CP = 7575, |
SP = Rs. 690 |
\[\therefore \] Gain per cent \[=\left( \frac{115}{575}\times 100 \right)%=20%\] |
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