Average Practice Question and Answer
8Q: The average of marks obtained by 14 students was 71, but it was found later that one of the student’s mark was accounted as 42 instead of 56 and for the other student; it was accounted as 74 instead of 32. So, the find the actual average? 1569 05d19df8b7619fe30b9d34a61
5d19df8b7619fe30b9d34a61- 167false
- 268false
- 369true
- 471false
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Answer : 3. "69"
Explanation :
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Q: A man spends Rs. 1800 monthly on an average for the first four months and Rs. 2000 monthly for the next eight months and saves Rs. 5600 a year. His average monthly income is
1556 05f3f8bcf54900c5349e2d832
5f3f8bcf54900c5349e2d832- 1Rs. 2000false
- 2Rs. 2200false
- 3Rs. 2400true
- 4Rs. 2600false
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Answer : 3. "Rs. 2400"
Q: A team of 8 persons joins in a shooting competition. The best marksman scored 85 points. If he had scored 92 points, the average score for the team would have been 84. The number of points the team scored was
1553 05ffd80ed605e8a6ae8f2a8b2
5ffd80ed605e8a6ae8f2a8b2- 1672false
- 2665true
- 3645false
- 4588false
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Answer : 2. "665"
Q: The average of marks obtained by 120 candidates in an examination is 35. The average of marks obtained by passed candidates is 39 and that of for failed candidates is 15. What is the no. of passed candidates? 1550 05d19d8bd1388cd24f0860f10
5d19d8bd1388cd24f0860f10- 1100true
- 2120false
- 3150false
- 4140false
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Answer : 1. "100"
Explanation :
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Q: The average of the squares of first ten natural numbers is
1532 05f294670a5ce9779bd25791b
5f294670a5ce9779bd25791b- 137.5false
- 238.5true
- 335.5false
- 436false
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Answer : 2. "38.5"
Q: The average weight of 15 oarsmen in a boat is increased by 1.6 kg when one of the crews, whose weighs 42 kg is replaced by a new man. Find the weight of the new man (in kg).
1526 05f479a3809e4377de945ee30
5f479a3809e4377de945ee30- 166true
- 243false
- 367false
- 465false
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Answer : 1. "66"
Q: The average of marks scored by the students of a class is 68. The average of marks of the girls in the class is 80 and that of the boys is 60. What is the percentage of boys in the class?
1508 05f2a5f24cef453383f1e38ad
5f2a5f24cef453383f1e38ad- 165%false
- 270%false
- 340%false
- 460%true
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Answer : 4. "60% "
Q: The average of seven numbers is 18. If one of the number is 17 and if it is replaced by 31, then the average becomes:
1507 05f2a7ddc7079852b553cc9c8
5f2a7ddc7079852b553cc9c8- 120true
- 221false
- 321.5false
- 419.5false
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