Question

By selling 125 cassesttes,a man gains an amount equal to the selling price of 5 cassettes.find the gain per cent.

answer 9f this question is 25/6 %

Answer 1

Let the gain percent x and price 1 cassette also x .
So x% of 125 is 5x
=4x/5 is 5x
So x =4%

Answer 2

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Let SP of 1 cassette be ₹1
SP of 125 cassettes = ₹1×125 = ₹125
Profit = SP of 5 cassettes = ₹5

As CP is not given , we cant find the profit %.

Let CP be x.
CP = SP - profit
= ₹125 - ₹5
= ₹120

CP of 125 cassettes = ₹120

PROFIT % = PROFIT / CP × 100%

$= \frac{5}{120} \times 100 \%\\ = \frac{5}{12 } \times 10\% \\ = \frac{5}{6} \times 5\% \\ = \frac{25}{6} \%$

PROFIT % = 25/6%

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#AADI 93