Average Practice Question and Answer
8Q: 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? 1392 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? 1502 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- 1527 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?
1233 05dfa0f0f1d67d356b4b6ac8b
5dfa0f0f1d67d356b4b6ac8b- 160false
- 260false
- 362false
- 463false
- 5None of thesetrue
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Answer : 5. "None of these"
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?
1422 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
1694 05df0b93a0183ea49d62ac296
5df0b93a0183ea49d62ac29659, 84, 44, 98, 30, 40, 58
- 162false
- 266false
- 375false
- 452false
- 559true
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Answer : 5. "59"
Q: There are 45 male and 15 female employees in an office. If the mean salary of the 60 employees is Rs 4800 and the mean salary of the male employees is Rs 5000, then the mean salary of the female employees is
2338 05de49793848f4a29cf45b0de
5de49793848f4a29cf45b0de- 1Rs 4200true
- 2Rs 4500false
- 3Rs 5600false
- 4Rs 6000false
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Answer : 1. "Rs 4200"
Q: The average of nine consecutive odd numbers is 53. The least odd number is:
2034 05dcba07185d84c59cfbbffd5
5dcba07185d84c59cfbbffd5- 122false
- 227false
- 335false
- 445true
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