Question

solve Q.4 only genius

Answer 1

let the cp of 1 notebook be x
hence the sp of 12 notebooks=16x
the cp of 12 notebooks=12x

the gain percent=4x/12x*100
=100/3
=33.33℅

Answer 2

Let the cost price of each notebook be ₹1

Then,

CP of 12 Notebooks = ₹ 12

SP of 12 Notebooks
= CP of 16 Notebooks = ₹ 16

Thus, Gain = (SP) - (CP)

= ₹ (16 - 12) = ₹4

Gain % = (Gain / CP × 100) %

= (4 / 12 × 100) %

= (100 / 3) %

= 33 whole 1 / 3 %

= 33.33... %

Hence, Gain % = 33.33... %

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