Question

The Claude crayon company can make 2400 crayons in 4 minutes. If each crayon box has 12 crayons, how many crayon boxes can they make in 15 minutes?

• A. 750
• B. 800
• C. 900
• D. 1000

Answer 1

The correct option is A

750

Let n be the number of boxes.
As there are 12 crayons in each box, 2400 crayons fits into

$\frac{2400}{12}=200boxes$

Now the number of boxes produced will be directly proportional to time taken.

$\frac{A}{B}$= Constant

$\frac{A_1}{B_1}$ = $\frac{A_2}{B_2}$

$\frac{No.ofcrayonsboxes}{time}=\frac{200}{4}=\frac{n}{15}$

So, n = 750