Question

If two dozen bananas cost Rs.84, then what will be the cost of
15 bananas?​

Answer 1

₹52.5

2 dozen= 24

24 bananas costs 84

1 banana will cost 84/24=7/2

15 bananas will cost = 7/2 x 15 = 105/2= ₹ 52.5

Answer 2

One dozen = 12 units
So, two dozen = 24 units
24 bananas cost ₹84
Cost of one banana = 84/24 = 3.5
Cost of 15 bananas = 3.5 * 15 = 52.5