Selected MCQ

Current Question
A wholesaler has three lots of goods. What is the average weight?
  • A. 50
  • B. 36
  • C. 24
  • D. 12
Correct Answer: D
Explanation:
Weighted average calculation.
Related Question 1
Three years ago, the average age of 6 members was 19. Find the present age of a boy.
  • A. 1 year
  • B. 1.5 years
  • C. 2 years
  • D. 2.5 years
Correct Answer: A
Explanation:
Total age difference method.
Related Question 2
The sum of five numbers is 655. The average of the first two is 85. Find the sum of the last three.
  • A. 180
  • B. 170
  • C. 190
  • D. 175
Correct Answer: A
Explanation:
Subtract known sum.
Related Question 3
In an exam, three students score 64%, 36%, and 44% of 800 marks. What is the average score?
  • A. 384
  • B. 364
  • C. 324
  • D. 404
Correct Answer: A
Explanation:
Average = 48% of 800 = 384.
Related Question 4
The average weight of 8 persons increases by 2 kg when a new person joins. What is the weight of the new person?
  • A. 70 kg
  • B. 72 kg
  • C. 74 kg
  • D. 76 kg
Correct Answer: D
Explanation:
Increase = 16 ⇒ new person = 76 kg.
Related Question 5
The average of three numbers is 45. If two numbers are 40 and 50, what is the third?
  • A. 35
  • B. 40
  • C. 45
  • D. 55
Correct Answer: C
Explanation:
Total = 135 ⇒ third = 45.