Question

20 cartoon boxes have 300 balls. How many cartoon boxes are required to pack 750 balls?

• A. 50 cartoon boxes
• B. 40 cartoon boxes
• C. 30 cartoon boxes
• D. 20 cartoon boxes

Answer 1

The correct option is A 50 cartoon boxes

We know more balls means more carton boxes .
Hence the ratio of number of balls to number of carton boxes are in proportion.
20 : 300 :: required boxes : 750
$\Rightarrow$ $\frac{20}{300}=\frac{requiredboxes}{750}$

so, required number of boxes = $\frac{750\times 20}{300}$
$\Rightarrow$ required number of boxes = 50