Question

Cost of 4 dozens bananas is ₹60. How many bananas can be purchased for ₹12.50?

• A. 48
• B. 24
• C. 36
• D. 12

Answer 1

The correct option is B 24

Cost of 4 dozen bananas = ₹60
Number of bananas in 1 dozen = 12
$\Rightarrow$ Number of bananas in 4 dozens $=4\times 12=48$

$\Rightarrow$ Cost of 48 bananas = ₹60

Applying unitary method, where firstly we find the value of one unit and then the value of required number of units.

From ₹60, number of bananas that can be purchased = 48

$\therefore$ From ₹1, number of bananas that can be purchased $=\frac{48}{60}=\frac{4}{5}$

$\therefore$ From ₹12.50, number of bananas that can be purchased = $\frac{4}{5}\times 12.50=4\times 2.5=10$

Thus, 10 bananas can be purchased for ₹12.50.