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A Vcr and Tv Were Bought for Rs 8,000 Each. the Shopkeeper Made a Loss of 4% on the Vcr and a Profit of 8% on the Tv. Find the Gain Or Loss Percent on the Whole Transaction. - Mathematics

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Question

A VCR and TV were bought for Rs 8,000 each. The shopkeeper made a loss of 4% on the VCR and a profit of 8% on the TV. Find the gain or loss percent on the whole transaction.

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Solution

C.P. of a VCR = Rs 8000

The shopkeeper made a loss of 4 % on VCR.

This means if C.P. is Rs 100, then S.P. is Rs 96.

When C.P. is Rs 8000, S.P. = Rs `(96/100 xx 8000)` = Rs 7680

C.P. of a TV = Rs 8000

The shopkeeper made a profit of 8 % on TV.

This means that if C.P. is Rs 100, then S.P. is Rs 108.

When C.P. is Rs 8000, S.P. = Rs `(108/100 xx 8000)` = Rs 8640

Total S.P. = Rs 7680 + Rs 8640 = Rs 16320

Total C.P. = Rs 8000 + Rs 8000 = Rs 16000

Since total S.P.> total C.P., there was a profit.

Profit = Rs 16320 − Rs 16000 = Rs 320

Profit % = `"Profit"/"C.P"` x 100

= `320/16000 xx 100` = 2 %

Therefore, the shopkeeper had a gain of 2% on the whole transaction.

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Chapter 8: Comparing Quantities - Exercise 8.2 [Page 125]

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NCERT Mathematics [English] Class 8
Chapter 8 Comparing Quantities
Exercise 8.2 | Q 5 | Page 125

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