Sunday, March 28, 2010

Challenging P5 2009 SA1 P1 MGS Q13

13. The picture below shows a dart board. Benny threw 3 darts and all the 3 darts hit the board. Which of the following is NOT likely to be his score?

(1)  75
(2)  80
(3)  125
(4)  135


Tabulate out the possible numbers to help you to see and calculate the total.
1st dart  2nd dart  3rd dart
--------------------------------
  5                5                5
 25              25              25
 50              50              50
100            100            100             

25 + 25 + 25 = 75

5 + 25 + 50 = 80 √

25 + 50 + 50 = 125 √


So 135 is NOT a likely score and the answer (4).

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