Question

The cost price of 18 notebooks is same as the selling price of 16 notebooks. Find the gain percent

Answer 1

Answer:

CP of 16 notebooks = SP of 12 notebooks

=> Let the CP of 1 notebook be ₹1

=> CP of 16 notebooks = ₹1×16 = ₹16

=> SP of 12 notebooks = ₹16

=> SP of 1 notebook = ₹16/12 = ₹4/3

SP>CP

Gain = SP - CP

Gain = ₹ (4/3 - 1)

Gain = ₹1/3

Gain % = Gain/CP ×100

Gain % = 1/3 ×100

Gain % = 33 1/3%

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