(4) S.P. of 20 apples = ₹ 1 So, S. P. of 1 apple = ₹ 0.05 or 5paise Selling 20 apples for ₹ 1 involves aloss of 4%. Let Cost Price of 1 apple = C.P.So, 0.05 = 96% of C.P. C.P. =
5
96
For a profit of 20%, S. P. of one apple =
5
96
+20%of
5
96
=
6
96
=
1
16
Therefore, 16 apples should be soldper rupee to have a gain of 20%.