RRB Group D 1-Dec-2013 Shift 1 Solved Paper

Question : 3 of 100

Marks: +1, -0

A man bought an article and sold it at a gain of 10%. If he had bought it at 20% less and sold it for ₹10 more, he would have made a profit of 40%. The cost price of the article is

₹500
₹480
₹450
₹400

Validate

Solution:

(1) Let C.P. of the article be

₹ x

.
After getting a profit of

10 \%

S.P. =

\;{110 x}/{100}

If C.P. be

20 \%

less than C.P. will be

=\;{80 x}/{100}

And S.P. ₹ 10 more, i.e. =

{110 x}/{100}+10

\text " According to the question, "\;

\;{110 x}/{100}+10-\;{80 x}/{100}=\;{40}/{100}(\;{80 x}/{100})

⇒ \;{30 x}/{100}+10=\;{32 x}/{100}

⇒ \;{2 x}/{100}=10

⇒ x=500

\text " C.P. of the article is "\; ₹ 500

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