Average Questions Practice Question and Answer
8 Q: The average weight of a group of 20 boys was calculated to be 89.4 kg and it was later discovered that one weight was misread as 78 kg instead of 87 kg. The correct average weight is
1716 05f2a74fdcef453383f1e6311
5f2a74fdcef453383f1e6311- 189.55 kgfalse
- 289.85 kgtrue
- 388.95 kgfalse
- 489.25 kgfalse
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Answer : 2. "89.85 kg"
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
1712 05f3f8bcf54900c5349e2d832
5f3f8bcf54900c5349e2d832- 1Rs. 2000false
- 2Rs. 2200false
- 3Rs. 2400true
- 4Rs. 2600false
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Answer : 3. "Rs. 2400"
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).
1705 05f479a3809e4377de945ee30
5f479a3809e4377de945ee30- 166true
- 243false
- 367false
- 465false
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Answer : 1. "66"
Q: A group consists of 25 men and 20 women. The average weight of men is 48 kg and that of women is 30 kg. The average weight of the group is
1684 05feee12ad6478d50161e6c83
5feee12ad6478d50161e6c83- 135 kgfalse
- 239 kgfalse
- 340 kgtrue
- 445 kgfalse
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Answer : 3. "40 kg"
Q: If the average marks obtained by Balu, Benjamin and Babur is 80 and the average marks of Benjamin and Babur is 83, find marks obtained by Balu.
1683 05eb4f8d14080050ac264c09f
5eb4f8d14080050ac264c09f- 180false
- 283false
- 390false
- 474true
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Answer : 4. "74 "
Q: Average age of a couple before 4 years, at the time of their marriage was 27 years. Now, the average age of the couple including their new born baby is 21 years. Find the present age of the baby? 1674 05d19d2be1388cd24f0860ef5
5d19d2be1388cd24f0860ef5- 14 yearsfalse
- 23 yearsfalse
- 32 yearsfalse
- 41 yearstrue
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Answer : 4. "1 years"
Q: The average of three numbers is 40. First of them is two times of the seconds and the second is three time of the third. So, what is the difference between the largest and smallest number? 1668 05d19dded7619fe30b9d345a3
5d19dded7619fe30b9d345a3- 130false
- 236false
- 346false
- 460true
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Answer : 4. "60"
Explanation :
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Q: The average of x numbers is 48. If of the numbers are increased by 51 each and remaining are decreased by 71 each, then what is the new average?
1666 0605868aed2ebd403fd28aae5
605868aed2ebd403fd28aae5- 151true
- 249false
- 350false
- 446false
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