Average Questions 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? 1175 05d19df8b7619fe30b9d34a61
5d19df8b7619fe30b9d34a61- 167false
- 268false
- 369true
- 471false
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Answer : 3. "69"
Explanation :
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Q: The average value found for 20 observations was 75. It was noticed later that 97 was read as 79. So, what was the correct average value? 1265 05d19e0457619fe30b9d34a66
5d19e0457619fe30b9d34a66- 175.7false
- 275.8false
- 375.9true
- 475.6false
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Answer : 3. "75.9"
Explanation :
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Q: The average of goods produced by a company every month is 4000 of average of last 3 month’s production. How many average goods should they produce every month in next 9 months so their monthly average production during a year will be 4375? 1351 15d19f4b07619fe30b9d34af4
5d19f4b07619fe30b9d34af4- 14500true
- 24600false
- 34680false
- 44710false
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Answer : 1. "4500"
Explanation :
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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- 1393 05d19f5821388cd24f08614e7
5d19f5821388cd24f08614e7- 120false
- 221true
- 323false
- 422false
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Answer : 2. "21"
Explanation :
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Q: The average marks of 42 students in an examination, were 64. Later it was found that the marks of three students were misread as 72, 58 and 44 instead of the actual marks 64, 42 and 26 respectively. What are the correct average marks?
1143 05dfa0f0f1d67d356b4b6ac8b
5dfa0f0f1d67d356b4b6ac8b- 160false
- 260false
- 362false
- 463false
- 5None of thesetrue
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Answer : 5. "None of these"
Q: What is the age of A in a group of 6 students – A, B, C, D, E and F whose average age is 16 years?
Statement I: Total age of B and D is 30 years
Statement II: Total age of E and F is 31 years.
Statement III: Total age of A is 10 years.
1112 05df9c35280cad641a0c9ac8b
5df9c35280cad641a0c9ac8bStatement I: Total age of B and D is 30 years
Statement II: Total age of E and F is 31 years.
Statement III: Total age of A is 10 years.
- 1Only I and II together are sufficientfalse
- 2Only II and III together are sufficientfalse
- 3Any two of the three are sufficientfalse
- 4All three together are neededtrue
- 5Even all together are not sufficientfalse
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Answer : 4. "All three together are needed"
Q: Ram has 5 daughters. The average age of these 5 sisters is 28 years. The youngest one is 16 years old. What was the average age of the 4 daughters before the youngest one was born?
1329 05df9b6a87c41ef1d193367c5
5df9b6a87c41ef1d193367c5- 128 yearsfalse
- 215 yearstrue
- 331 yearsfalse
- 416 yearsfalse
- 520 yearsfalse
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Answer : 2. "15 years"
Q: What will be the average of the following set of scores?
59, 84, 44, 98, 30, 40, 58
1376 05df0b93a0183ea49d62ac296
5df0b93a0183ea49d62ac29659, 84, 44, 98, 30, 40, 58
- 162false
- 266false
- 375false
- 452false
- 559true
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