Question

if the cost price of 15 pen is equal to the selling price of 20 pen , what is the loss percent

Answer 1

Answer:

25%

Step-by-step explanation:

cost price of 1 pen = 1/15

selling price of 1 pen = 1/20

(1/20)-(1/15) = 3-4/60 = -1/60

loss = 1/60

loss % = (1/60 × 100)/ 1/15 = (15/60)×100 = 25%

from trick,

(20-15)/20 × 100 = (5/20) ×100 = 100/4 = 25%

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