Question

One man bought 120 bananas in ₹ 50. 20 bananas are gone. The rate of the remaining banana sold at 20%.

Answer 1

haa to kya kru hmara kya fayda

Answer 2

question is not completed

cost price  of 120 bananas = rs.50
out of 120 , 20 got spoiled cp of 1 banana = 50/120 = 0.42
so remaining bananas = 100
selling price of 100 bananas = 20% ?
20% of profit or loss?

suppose your que. is profit, then
 sp = cp (100 + profit%) / 100
     =  0.42(100+20) /100
     = 0.42 x 1.20
     = 0.50
suppose  if its loss %
sp = cp (100-loss%)/100
     = 0.42(100-20) /100
     =0.42 x 0.80
     = 0.336