PATTERNS, FUR1 2008 VCAA 2 MC

For an examination, 8600 examination papers are to be printed at a rate of 25 papers per minute. After one hour, the number of examination papers that still need to be printed is

A. `1600`

B. `2500`

C. `6100`

D. `7100`

E. `8575`

Show Answers Only

`D`

Show Worked Solution

`text(Printing rate = 25 per minute)`

`:.\ text(In 1 hour, exam papers printed)`

`= 60xx25`

`= 1500`

`:.\ text(Papers still to be printed)`

`= 8600-1500`

`= 7100`

`=>D`