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- Question
If a+1a=2 then the vealue of a5+1a5 will be
Options- A. 0
- B. 1
- C. 3
- D. 2
- Correct Answer
- 1
- 1. Average of two numbers is 8 and average of other three numbers is 3 ; the average of the five numbers is
Options- A. 2
- B. 3
- C. 5
- D. 6 Discuss
- 2. The average weight of 50 boys in a class is 45 Kg. When one boy leaves the class, the average reduces by 100g. Find the weight of the boy who left the class.
Options- A. 50 Kg
- B. 50.8 Kg
- C. 49 Kg
- D. 49.9 Kg Discuss
- 3. The simple interest on a sum for 20 years is 5/4 of the principal. What is the per annum rate (in percentage) of interest?
Options- A. 6.25
- B. 12.5
- C. 2.5
- D. 5 Discuss
- 4. The median of the numbers 14, 12, 12, 16, 13 and 18 is
Options- A. 13
- B. 14
- C. 14.5
- D. 13.5 Discuss
- 5. The average weight of two players P and Q of a football team is 38 kg. The average weight of P, Q and their coach T is 49 kg. What is the weight (in kg) of coach?
Options- A. 71
- B. 46
- C. 76
- D. 91 Discuss
- 6. In the first 39 overs of a cricket match, the run rate was 4.6 runs/over. Calculate the required run rate in the remaining 11 overs to reach the target of 252 runs?
Options- A. 7.2
- B. 5.7
- C. 6.3
- D. 6.6 Discuss
- 7. In a particular week the average number of people who visited the Park is 40. If we exclude the holidays then the average is increased by 16. Further if we exclude also the day on which the maximum number of 112 people visited the Park, then the average becomes 42. The number of holidays in the week is
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 8. In a match of 50 overs, team A?s average runs for first thirty overs was 4.5 runs/over while for the remaining 20 overs the average was 5.5 runs/over. Team B chased the target and lost by 10 runs. Find the average runs per over scored by team B. (team B played all the 50 overs).
Options- A. 4.4
- B. 5.2
- C. 4.7
- D. 4.6 Discuss
- 9. In a class of 60 students there are 30 girls. The average weight of these girls is 58 Kg and average weight of the full class is 63 kgs. What is the average weight of the boys of the class?
Options- A. 67
- B. 66
- C. 68
- D. 65 Discuss
- 10. The mean of 21 observations (all different) is 40. If each observation greater than the median is increased by 21, then the mean of observations will become:
Options- A. 50
- B. 30
- C. 50.5
- D. 45 Discuss
Average problems
Search Results
Correct Answer: 5
Correct Answer: 49.9 Kg
Explanation:
Total weight of 50 boys = 45 X 50 = 2250
Average weight of 49 boys = 44.9
Total weight of 49 boys = 44.9 X 49 = 2200.1
Weight of boy who left the class=2250?2200.1=49.9
Correct Answer: 6.25
Correct Answer: 13.5
Correct Answer: 71
Correct Answer: 6.6
Correct Answer: 2
Explanation:
Total number of people = 40 * 7 = 280
(7 -n)*(40+16) = 280
(7 -n)*56 = 280
7-n = 5
Number of holidays = 2
Correct Answer: 4.7
Explanation:
Total runs scored by team
Correct Answer: 68
Correct Answer: 50
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