RRB Group D 23-Oct-2018 Shift 3 Solved Paper

Question : 42 of 100

Marks: +1, -0

A shopkeeper sells two power banks for

\Rs. 960

each. On one he gains

20 \%

and on the other he incurs a loss of

20 \%

. What was his gain or loss in the overall transaction?

Solution:

In this case always a loss and loss\%

={(\% {P})^{2}}/{100}={(20)^{2}}/{100}

={400}/{100}=4 \%

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