Q. 314.4( 25 Votes )

A shopkeeper sold two fans for Rs. 1140 each. On one he gains 14%, while on the other he loses 5%. Calculate his gain or loss per cent in the whole transaction.

Answer :

SP of first fan = Rs.1140

C.P of first fan 

= Rs.1000


SP of second fan = Rs.1140

C.P of second fan,
 

= Rs. 1200

SP of both fans = 1140 + 1140


= Rs.2280


CP of both fans = 1000 + 1200


= Rs.2200


It is a case of Gain because SP is more than CP.


Gain = SP – CP


=2280 - 2200


= Rs80



= (80 × 100) / 2200


= 3.64%

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