Question

If two dozen bananas cost $₹48$, find the cost of$27$ bananas.

Answer 1

Solving the problem using the unitary method:

Given, that the cost of two dozen bananas is $₹48$

Cost of $1$ banana $=\frac{48}{24}=2(\because 1dozen=12,2dozen=2\times 12=24)$

Cost of$27$ bananas $=27\times 2=54$

Thus, the cost of$27$ bananas $=₹54$