Question

By selling125cassettes ,a man gains an amount equal to selling price of 5 cassettes. Find the gain percent

Answer 1

Thanks for asking the question.
Let the selling price of each cassette=Rs.x
Selling price of 125 cassettes=Rs.125x
Profit gained=Rs.5x
CP=SP-Profit
CP=120x
Profit%=(profit/CP)*100
Profit%=(5x/120x)*100
Profit=4.150~4%
Hope it helps.

Answer 2

hi

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

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let sp of on mango be rs1

then sp of 125mangoes = 125 × 1

                                          = rs 125

now he gains sp of 5 mangoes = 5×1

= rs5

so,

cp = sp - gain

cp = 125-5

cp=120rs

now gain% = gain * 100 / cp

                    = 5 * 100/120

      gain%               =  4.16666............

                gain%                  = 4.167 %

:)