Average Practice Question and Answer
8 4 Answer : 2. "21"
4 Q:
5f2a6089a5ce9779bd291953 4 Q:
5ef04bd381a47f2e7ae4419f 4 Answer : 1. "4500"
4 Answer : 1. "12 years"
4 Q:
64abdcbb299b7896000b4560 4 Q:
5ee05f683f1add232d8330fa 4 Answer : 3. "56 years "
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
- Show Answer
- Workspace
- SingleChoice
Answer : 2. "21"
Explanation :
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Q: The average age of 24 boys and their teacher is 15 years. When the teacher's age is excluded, the average age decreases by 1 year. The age of the teacher is:
1518 05f2a6089a5ce9779bd291953
5f2a6089a5ce9779bd291953- 140 Yearsfalse
- 241 Yearsfalse
- 338 Yearsfalse
- 439 Yearstrue
- Show Answer
- Workspace
- SingleChoice
Answer : 4. "39 Years"
Q: Find mean of first five prime number.
1503 15ef04bd381a47f2e7ae4419f
5ef04bd381a47f2e7ae4419f- 14.5false
- 23.6false
- 35.4false
- 45.6true
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- SingleChoice
Answer : 4. " 5.6"
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
- Show Answer
- Workspace
- SingleChoice
Answer : 1. "4500"
Explanation :
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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? 1482 05d19d6201388cd24f0860eff
5d19d6201388cd24f0860eff- 112 yearstrue
- 214.5 yearsfalse
- 315 yearsfalse
- 417 yearsfalse
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- Workspace
- SingleChoice
Answer : 1. "12 years"
Explanation :
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Q: The average of 20 numbers is 32. If two numbers are 29 and 31, then what is the average of the remaining numbers (correct up to two decimals)?
1482 064abdcbb299b7896000b4560
64abdcbb299b7896000b4560- 131.24false
- 230.22false
- 334.44false
- 432.22true
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Answer : 4. "32.22"
Q: The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The observation is
1469 05ee05f683f1add232d8330fa
5ee05f683f1add232d8330fa- 120false
- 224false
- 326true
- 428false
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- Workspace
- SingleChoice
Answer : 3. "26 "
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? 1468 05d19cf5a1388cd24f0860eef
5d19cf5a1388cd24f0860eef- 154 yearsfalse
- 255 yearsfalse
- 356 yearstrue
- 458 yearsfalse
- Show Answer
- Workspace
- SingleChoice
Answer : 3. "56 years "
Explanation :
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