Question

Cost of 4 dozen bananas is Rs.180. How many bananas can be purchased for Rs. 90?

Answer 1

Cost of 4 dozen bananas = 60 RS.

Cost of 48 bananas = RS. 60 [4 dozen = 4 x 12 = 48]

∵ From Rs. 60, number of bananas can be purchased = 48

∴ From Rs.1, number of bananas can be purchased = \(\frac{48}{60}\)

= \(\frac{4}{5}\)

∴ From Rs. 12.50. number of bananas can be purchased = \(\frac{4}{5}\)×12.50

= \(\frac{4}{5}\)×12.50

= \(\frac{4}{5}\)×\(\frac{1250}{100}\)

= \(\frac{250}{25}\)

= 10 bananas 

Thus, 10 bananas can be purchased for Rs.12.50.