RRB ALP 2013 Ques 12

Question: By selling an article at some price a person gains 10%. If the article is sold at twice of the price, the gain per cent will be:

Options:

A) 20%

B) 60%

C) 100%

D) 120%

Show Answer

Answer:

Correct Answer: D

Solution:

  • Let C.P. Rs. = 100; then S.P. with gain 10% = Rs. 100 But when S.P. $ =2\times Rs.110=Rs.220 $ Gain = 220 - 100 = Rs. 120
    $ \therefore $ Gain $ %=\frac{120\times 100}{100}=120% $