Question

A copy machine can print 480 copies every 4 minutes how many copies can it print in 10 minutes

Answer 1

10·(480:4)=10·120=1200

Answer 2

It can print 1200 copies in 10 minutes.

Explanation:

This problem can be solved using a proportion.

Let x be the number of copies that can be printed in 10 minutes.

480 copies = 4 minutes

x = 10 minutes

cross-multiply

4 × x = 480 × 10

4x = 4800

Divide both-side of the equation by 4

`(4X)/(4)` =
`(4800)/(4)`

(On the left-hand side of the equation, 4 at the numerator will cancel-out 4 at the denominator, leaving us with just x, while on the right-hand side of the equation 4800 will be divided by 4)

x = 1200 copies.

Therefore, It can print 1200 copies in 10 minutes.