[中小學校]中2數學1問

8 multiple choice questions in 10 min
= 1.25 min / q
The time needed for doing 45 multiple choice questions:
1.25 × 45 min / 1 × 45 q
= 56.25 min / 45 q

2 long questions in 25 min
= 12.5 min / q
The time needed for doing 5 long questions:
12.5 × 5 min / 1 × 5 q
= 62.5 min / 5 q

The total time
= 56.25 + 62.5
= 118.75 min < 2 hours

So, Tim can finish the whole paper in 2 hours.

As follows:


圖片參考：http://a.imagehost.org/0411/ScreenHunter_05_Nov_15_12_07.gif

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