Question

If bananas are bought at the rate of 12 for 15 rupees, what will be the S.P. of
one banana to gain 20%?​

Answer 1

cp of 12 bananas = Rs.15

then, cp of 1 banana = 15/12

g percent = 20 percent

s.p. = 100+g percent/100 × cp

s.p. = 120/100 × 15/12

s.p. = Rs. 1.5