PSLE
A player has to play a total of five games in Round 1 of a competition. The scores for Elijah's first four games are shown. Elijah will qualify for Round 2 if his average score for four of the five games is 100 or more. What is the lowest score Elijah must get in the 5^th game to qualify for Round 2?

Round 1
Game	Score
1st	98
2nd	98
3rd	99
4th	90
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 2, we need to exclude the lowest score (90) at the 4th game in Round 1 so that the rest of the four games can be as high as possible to qualify for Round 2.

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

Score in the 5th game
= 400 - 98 - 98 - 99
= 105

Answer(s): 105