Question

(1)The cost of 12 pens is equal to the S.P. of 15 pens. Find the loss percent.
(2)If the SP of 16 books is equal to the cp of 17 books find the gain 0% .​

Answer 1

Answer:

(1) Let the cost of 1 pen be Rs.1

CP of 12 pens = Rs.12

SP of 15 pens = Rs.12

CP of 15 pens = Rs.15

Loss = Rs.15 - 12 = Rs.3

Loss percent = 3/15 × 100 = 20%

(2) Let the cost of 1 book be x.

CP of 17 books = 17x

SP of 16 books = 17x

CP of 16 books = 16x

Profit = 17x - 16x = x

Gain percent = x/16x × 100 = 6.25%

Answer 2

Answer:

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