PSLE
A player has to play a total of five games in Round 3 of a competition. The scores for Tom's first four games are shown. Tom will qualify for Round 4 if his average score for four of the five games is 100 or more. What is the lowest score Tom must get in the 5^th game to qualify for Round 4?

Round 3
Game	Score
1st	99
2nd	95
3rd	98
4th	86
5th	?

Lowest total score for four games to qualify
= 4 x 100
= 400

To get the lowest score in the fifth game to qualify for Round 4, we need to exclude the lowest score (86) at the 4th game in Round 3 so that the rest of the four games can be as high as possible to qualify for Round 4.

Hence, the 1st, the 2nd and the 3rd games must score a total of 400.

Score in the 5th game
= 400 - 99 - 95 - 98
= 108

Answer(s): 108