Cost of 4 dozens bananas is Rs 180. How many bananas can be purchased for Rs 90?
Numbers of bananas bought in Rs 180 = 4 dozens = 4 × 12 = 48
Number of bananas bought in Re 1 =
Therefore, number of bananas bought in Rs 90 = = 24 bananas
Thus, 24 bananas can be purchased for Rs 90.