HSSC CET · Quantitative Ability
Simple average and weighted average.
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Q1 · Average · EASY
The average of five numbers is 48. If one number is excluded, the average of the remaining four numbers becomes 45. What is the excluded number?
Q2 · Average · MEDIUM
A batsman has scored an average of 52 runs in 10 innings. How many runs must he score in his 11th innings to increase his average to 54?
Q3 · Average · MEDIUM
The average weight of 30 students in a class is 45 kg. If the teacher's weight is included, the average weight increases by 1 kg. What is the weight of the teacher?
Q4 · Average · HARD
The average marks of three sections A, B, and C of a class are 72, 60, and 80 respectively. The average marks of sections A and B together is 65. If the average marks of sections B and C together is 69, what is the ratio of the number of students in sections A, B, and C?
Q5 · Average · MEDIUM
The average of 15 numbers is 45. If the average of the first 8 numbers is 42 and the average of the last 8 numbers is 48, what is the 8th number?