Average Questions Practice Question and Answer
8Q: The average of 11 results is 50. If the average of first six results is 49 and and that of last six is 53, find the sixth result? 1384 05d19cc8e7619fe30b9d34583
5d19cc8e7619fe30b9d34583- 156false
- 262true
- 350false
- 458false
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Answer : 2. "62"
Explanation :
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Q: The average per day income of A, B and C is Rs. 450. If the average per day income of A and B be Rs. 400 and that of B and C be Rs. 430, the per day income of B is:
1368 05dcba2f445ad6b59c82d8685
5dcba2f445ad6b59c82d8685- 1Rs . 300false
- 2Rs . 310true
- 3Rs. 415false
- 4Rs . 425false
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Answer : 2. "Rs . 310 "
Q: The average salary of all employees working in an office is Rs.8000. The average salary of 7 technicians is Rs 12000 and the average salary of rest of the workers is Rs.6000. The total no. of workers working in that office is- 1362 05d19f5821388cd24f08614e7
5d19f5821388cd24f08614e7- 120false
- 221true
- 323false
- 422false
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Answer : 2. "21"
Explanation :
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Q: When the average age of husband, wife and their son was 42 years, the son got married and a child was born just one year after marriage. When the child turned to be 5 years, the average age of the family becomes 36 years. What was the age of daughter-in-law at the time of marriage?
1347 05f2cfeaebe9f31290fb86c32
5f2cfeaebe9f31290fb86c32- 124 yearfalse
- 228 yearfalse
- 330 yearfalse
- 425 yeartrue
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Answer : 4. "25 year"
Q: There are 40 boys in a class and average age of the class is 16 years. A boy of 17 years of age is replaced by another one, as a result average age becomes 15.875 years. Find the age of the new boy? 1346 05d19d6201388cd24f0860eff
5d19d6201388cd24f0860eff- 112 yearstrue
- 214.5 yearsfalse
- 315 yearsfalse
- 417 yearsfalse
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Answer : 1. "12 years"
Explanation :
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Q: What will be the average of the following set of scores?
59, 84, 44, 98, 30, 40, 58
1345 05df0b93a0183ea49d62ac296
5df0b93a0183ea49d62ac29659, 84, 44, 98, 30, 40, 58
- 162false
- 266false
- 375false
- 452false
- 559true
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Answer : 5. "59"
Q: 16 children are to be divided into two group A and B consisting of 10 and 6 children. The average percent marks obtained by the children of Group A is 75 and the average percent marks of all the 16 children is 76. What is the average percent marks of children of Group B?
1336 05f5afb19dc518b408a418a15
5f5afb19dc518b408a418a15- 1$$ {78}{2\over3}$$false
- 2$$ {77}{1\over3}$$false
- 3$$ {78}{1\over3}$$false
- 4$$ {77}{2\over3}$$true
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Answer : 4. "$$ {77}{2\over3}$$"
Q: Average age of 12 men is 56 years. Two members of 60 years and 52 years die. What will the average age of the remaining members? 1330 05d19cf5a1388cd24f0860eef
5d19cf5a1388cd24f0860eef- 154 yearsfalse
- 255 yearsfalse
- 356 yearstrue
- 458 yearsfalse
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Answer : 3. "56 years "
Explanation :
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