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- Question
3 numbers whose average is 112, the first number is 1/6th the sum of other 2. What is the first number?
Options- A. 45
- B. 30
- C. 15
- D. 48
- Correct Answer
- 48
- 1. The average marks of 10 students in an examination was 25. It was later found that the marks of one student had been wrongly entered as 34 instead of 43. What is the correct average?
Options- A. 25.5
- B. 24.1
- C. 24.5
- D. 25.9 Discuss
- 2. The average cost of 4 items in a shopping list is Rs 1,250. If one more item whose cost is Rs 2,000 is added to the list what will be the new average (in Rs)?
Options- A. 1100
- B. 1500
- C. 1400
- D. 1250 Discuss
- 3. A student, by mistake, wrote 64 in place of 46 as a number at the time of finding the average of 10 given numbers & got the average as 50. The correct average of the numbers is
Options- A. 48.2
- B. 48
- C. 48.1
- D. 49 Discuss
- 4. The mean of 100 observations was calculated as 40. It was found later on that one of the observations was misread as 83 instead of 53. The correct mean is:
Options- A. 39
- B. 39.7
- C. 40.3
- D. 42.7 Discuss
- 5. The average of 9 observations was found to be 35. Later on, it was detected that an observation 81 was misread as 18. The correct average of the observations is
Options- A. 28
- B. 42
- C. 35
- D. 45 Discuss
- 6. The average weight of P, Q and R is 45 kg. If the average weight of P and Q be 36.5 kg and that of Q and R be 52 kg, then what is the weight (in kgs) of Q?
Options- A. 42
- B. 44
- C. 46
- D. 48 Discuss
- 7. Average age of 20 students is 21 years. 2 students leave the group and 1 new student joins the group. The average now becomes 20 years. If age of one of the student who left the group is 26 years and the one who joined is 20 years, then what is the age (in years) of the other student who left the group?
Options- A. 20
- B. 14
- C. 22
- D. 16 Discuss
- 8. Each member of a club contributes as much rupees and as much paise as the number of members of the club. If the total contribution is Rs. 2525, then the number of members of the club is
Options- A. 60
- B. 45
- C. 55
- D. 50 Discuss
- 9. The average (arithmetic mean) amount of savings of ten students is Rs. 600. Three of the students have no savings at all and each of the others have at least Rs. 250 including Nihar, who has exactly Rs. 1300. The largest amount, in Rs., that any one student could have is
Options- A. 3250
- B. 3450
- C. 3650
- D. 3850 Discuss
- 10. A batsman has a certain average of runs for 12 innings. In the 13th inning he scores 96 runs thereby increasing his average by 5 runs. What will be his average after 13th inning?
Options- A. 28
- B. 32
- C. 36
- D. 42 Discuss
Average problems
Search Results
Correct Answer: 25.9
Correct Answer: 1400
Correct Answer: 48.2
Correct Answer: 39.7
Correct Answer: 42
Correct Answer: 42
Correct Answer: 14
Correct Answer: 50
Correct Answer: 3450
Correct Answer: 36
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