Question

4.
If the selling price of 16 pens is same as the cost price of 20 pens then the
(profit/loss) percentage is_​

Answer 1

Answer:

20/- is the profit between these pens ..As here for example,16 pens cost 80 rupees and each pen cost is 4 rupees and 20 pens cost is also 80/- and each pen cost is 5/-.Difference b/w them is the profit and loss.

Answer 2

C.P = X Rs. c.p = cost price
S.P = Y Rs. s.p = selling price


So
12*X = 16*Y
Therefore 3X = 4Y
Y = 3X/4

Loss % = C.P -S.P/ C.P*100


= X- 3X/4 / X * 100

= 100/4

= 25%