Wipro Company Numerical Ability Profit and Loss

A man sold two books at $1820 each. On the first book he gained 30% and on the other he lost 30%. Find the combined cost price of both the books.
A. $3800
B. $4000
C. $4200
D. $4500
E. None of these

Read Solution (Total 1)

Each Book Costs $1820.
In the question it is given that book1 is sold with 30% gain.
So the selling price of book1 is 1820 find the cost price
Cost price of book1 is selling price of book1/1.3(given 30% gain)=1400

same for book2
Cost price of book2 is selling price of book2/0.7(given 30%loss)=2600

so the total package cost is CP of book1+CP of book2=2600+1400=$4000
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