Question

the selling price of 16 pencils is equal to the cost price of 20 pencils .What is the profit percentage?

Answer 1

let cp of 20 pencil be x

cp of 1 pencil = x/20

sp of 16 pencils = x

sp of 1 pencil = x/16

now x/20 < x/16

its a gain

gain = x/16 - x/20
= x/80

gain % = ( x/80 ) x 100 / x/ 20
= 25 %

Answer 2

QUESTION --- the selling price of 16 pencils is equal to the cost price of 20 pencils .What is the profit percentage?


ANSWER
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Let the Cost Price (CP) of 20 pencils be x

=> Cost Price of 1 pencil = x/20

Selling Price of 16 pencils is given to be equal i.e. CP of 20 pencils equal to x

=> Selling Price (SP) of 1 pencil = x/16

x/16 > x/20

=> Its a gain/profit
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Profit = SP - CP

Profit = x/16 - x/20

Profit = (5x - 4x) / 80

Profit = x/80

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Profit Percentage = Profit / CP × 100

Profit % = x/80 ÷ x/20 × 100

Profit % = x/80 × 20/x × 100

x will cancel out

Profit % = 1/4 × 100

Profit % = 25 %

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ANSWER = 25%
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HOPE IT HELPS :):):):);)