Average Problems Practice Question and Answer
8 4 Answer : 2. "21"
4 Q:
5ef04bd381a47f2e7ae4419f 4 Answer : 1. "12 years"
4 Answer : 3. "56 years "
4 Answer : 1. "4500"
4 4 Q:
5ee05f683f1add232d8330fa 4 Answer : 3. "75.9"
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- 1364 05d19f5821388cd24f08614e7
5d19f5821388cd24f08614e7- 120false
- 221true
- 323false
- 422false
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Answer : 2. "21"
Explanation :
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Q: Find mean of first five prime number.
1359 15ef04bd381a47f2e7ae4419f
5ef04bd381a47f2e7ae4419f- 14.5false
- 23.6false
- 35.4false
- 45.6true
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Answer : 4. " 5.6"
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? 1358 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: 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? 1332 05d19cf5a1388cd24f0860eef
5d19cf5a1388cd24f0860eef- 154 yearsfalse
- 255 yearsfalse
- 356 yearstrue
- 458 yearsfalse
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Answer : 3. "56 years "
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? 1321 15d19f4b07619fe30b9d34af4
5d19f4b07619fe30b9d34af4- 14500true
- 24600false
- 34680false
- 44710false
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Answer : 1. "4500"
Explanation :
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Q: Average weight of 24 students is 32 kg. If increase by 2 kg when a teacher joins the group. What will be the weight of teacher? 1312 05d19d10c7619fe30b9d3458d
5d19d10c7619fe30b9d3458d- 182 kgtrue
- 284 kgfalse
- 380 kgfalse
- 485 kgfalse
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Answer : 1. "82 kg"
Q: The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The observation is
1268 05ee05f683f1add232d8330fa
5ee05f683f1add232d8330fa- 120false
- 224false
- 326true
- 428false
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Answer : 3. "26 "
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? 1244 05d19e0457619fe30b9d34a66
5d19e0457619fe30b9d34a66- 175.7false
- 275.8false
- 375.9true
- 475.6false
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Answer : 3. "75.9"
Explanation :
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