Question

If cost of 3 dozens of bananas is ₹ 180, then find the ratio of cost of 1 banana to cost of 1 dozen bananas.

• A. 6 : 1
• B. 9 : 2
• C. 10 : 3
• D. 1 : 12

Answer 1

The correct option is D 1 : 12

Cost of 1 dozen bananas = $\frac{180}{3}$ = ₹ 60
$\because$ 1 dozen = 12 units
$\therefore$ cost of one banana = $\frac{60}{12}$ = ₹ 5
Ratio of cost of 1 banana to that of 1 dozen bananas = 5 : 60 = 1 : 12