Level 2 PSLE
The average of four 3-digit numbers is 240. Two of the numbers are 190 and 230. What is the largest difference between the other two numbers?
Level 3 PSLE
A player has to play a total of five games in Round 1 of a competition. The scores for Barry's first four games are shown. Barry will qualify for Round 2 if his average score for four of the five games is 50 or more. What is the lowest score Barry must get in the 5the game to qualify for Round 2?
Level 3 PSLE
A player has to play a total of five games in Round 1 of a competition. The scores for Barry's first four games are shown. Barry will qualify for Round 2 if his average score for four of the five games is 50 or more. What is the lowest score Barry must get in the 5the game to qualify for Round 2?
Level 3 PSLE
Table 1 consists of numbers from 1 to 72. Kenny and Lionel are given a plastic frame that covers exactly 9 squares of Table 1 with the centre square covered.
Kenny puts the frame on the 9 squares shown in Figure 1. What is the average of the 8 numbers that can be seen in the frame?
Lionel puts the frame on some other 9 squares. The sum of the 8 numbers that can be seen in the frame is 320. What is the smallest number that can be seen in the frame?
Level 3 PSLE
Table 1 consists of numbers from 1 to 72. Kenny and Lionel are given a plastic frame that covers exactly 9 squares of Table 1 with the centre square covered.
Kenny puts the frame on the 9 squares shown in Figure 1. What is the average of the 8 numbers that can be seen in the frame?
Lionel puts the frame on some other 9 squares. The sum of the 8 numbers that can be seen in the frame is 320. What is the smallest number that can be seen in the frame?
Level 3
The average points accumulated by 6 children is 91.5. They have all attained different points which are whole numbers. The lowest point is 70 while the highest point is 100.
Find the average points achieved by the 4 children whose marks lie between the highest and the lowest.
Find the smallest possible second lowest mark among these 6 children.
Find the largest possible second lowest mark among these 6 children.
