Question

Cost of $4$ dozen of bananas is Rs. $60$. The number of bananas purchased for Rs. $22.50$ will be ___________.

• A. $12$
• B. $18$
• C. $10$
• D. $14$

Answer 1

Answer: (B)

$18$

Cost of $4$ dozen i.e., $4\times 12=48$ bananas$=$Rs. $60$
$\therefore$ Cost of $1$ banana $=$ Rs. $\left(\frac{60}{48}\right)$
$\therefore$ The number of bananas purchased for Rs. $22.50$
$=(22.50÷\frac{60}{48})=(22.50\times \frac{48}{60})$
$=\left(\frac{1080}{60}\right)=18$.