Average problems
- 1. The average of 5 members of a family is 24 years. If the youngest member is 8 years old, then what was the average age (in years) of the family at the time of the birth of the youngest member?
Options- A. 16
- B. 20
- C. 24
- D. 30 Also asked in: AIEEE, Bank Exams, CAT
Correct Answer: 20
- 2. The average age of 120 members of a society is 60.7 years. By addition of 30 new members, the average age becomes 56.3 years. What is the average age (in years) of newly joined members?
Options- A. 36.5
- B. 37.2
- C. 38.3
- D. 38.7 Also asked in: Bank Exams
Correct Answer: 38.7
- 3. Starting with 8000 workers, the company increases the number of workers by 5%, 10% and 20% at the end of first, second and third year respectively. The number of workers in the fourth yearwas
Options- A. 10188
- B. 11088
- C. 11008
- D. 11808 Also asked in: Bank Exams
Correct Answer: 11088
- 4. Average of 11 numbers is 7. If every number is doubled, then what will be the new average of the numbers?
Options- A. 3.5
- B. 7
- C. 10.5
- D. 14 Also asked in: Bank Exams
Correct Answer: 14
- 5. In a match, average of runs scored by 7 players is 53. If the runs scored by 6 players are 121, 40, 26, 56, 37 and 48, then how many runs did the 7th player scored?
Options- A. 26
- B. 37
- C. 43
- D. 48 Also asked in: Bank Exams
Correct Answer: 43
- 6. The average age of 24 students is 12 years. It was observed that while calculating the average age, the age of a student was taken as 14 years instead of 8 years. What will be the correct average age (in years)?
Options- A. 11.25
- B. 11.5
- C. 11.75
- D. 12.25 Also asked in: Bank Exams
Correct Answer: 11.75
- 7. The average runs conceded by a bowler in 5 matches is 45 and 15.75 in other 4 matches. What is the average runs conceded by the bowler in 9 matches?
Options- A. 15
- B. 32
- C. 35
- D. 53.5 Also asked in: Bank Exams
Correct Answer: 32
- 8. A canteen requires 56 kgs of rice for seven days . The quantity of rice required for the months of April and May together is
Options- A. 468 kg
- B. 488 kg
- C. 498 kg
- D. 508 kg Also asked in: Bank Exams
Correct Answer: 488 kg
- 9. Due to a price hike of 20% , 4 kg less sugar is available for Rs. 120 . What is the initial price per kg of sugar ?
Options- A. Rs. 5 Kg
- B. Rs. 4 Kg
- C. Rs. 6 Kg
- D. Rs. 5.5 Kg Also asked in: Bank Exams
Correct Answer: Rs. 5 Kg
- 10. The average temperature for Monday, Tuesday, Wednesday and Thursday was 48° . The average temperature for Tuesday, Wednesday, Thursday and Friday was 52°, If the temperature on Monday was 42°, then the temperature on Friday was (in degrees)
Options- A. 58
- B. 56
- C. 52
- D. 50 Also asked in: Bank Exams
Correct Answer: 58
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