Question

10 computer operators can compose 120 pages in 2 hours. How many operators should work, if the same job is to be completed in 30 minutes?

Answer 1

Answer:

40 Operators

Step-by-step explanation:

if 10 operators worked on 120 pages for 2 hours

P operators will work on the same pages for 30min

note: 2hrs= 120min

10×120min/120= P × 30/120

• cross multiply
• make P subject of the formula

P= 10×120×120/120×30

P = 40 operators