RRB RPF RPSF SI and CONS Model Papers 7 with solutions

Question : 52 of 120

Marks: +1, -0

The difference between the selling prices of an article at a profit of 15% and at a profit of 10% is Rs. 10. The cost price of the article is

Solution:

(4) Let CP of the article be Rs. x.
∴

{115 x}/{100}- {110 x}/{100}=10

⇒ {5 x}/{100}=10

⇒ x= {10×100}/{5}= {Rs} .200

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