Question

If the cost price of 18 TVs be equal to selling price of 16 TVs find the gain or loss per cent.​

Answer 1

Answer:

Let, CP of 1 TV be x.

CP of 18 TV is 18x=SP of 16 TV

CP of 16 TV =16x

Since, SP>CP

Profit=SP−CP

=18x−16x=2x

Profit(%)=

CP

profit

×100

=

16x

2x

×100

=

8

100

=12.5%

Step-by-step explanation:

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Answer 2

ANSWER

let the CP of 1 tv be x

CP of 18 TV's is 18x = SP of 16 TV's

CP of 16 TV's = 16x

since, SP > CP

profit = SP - CP

=18x - 16x =2x

profit % = profit/CP ×100

= 2x/16x ×100

= 100/8

= 12.5% (gain)

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