SSC Sample Paper Mock Test-14 SSC CGL Tear-II Paper-1

The marked price of an electric iron is Rs. 690. The shopkeeper allows a discount of 10% and gains 8%. If no discount is allowed, his gain per cent would be

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 \[=\left( \frac{115}{575}\times 100 \right)%=20%\]