Average Questions Practice Question and Answer
8 Q: Find the average of all prime numbers between 30 and 50.
2118 05f3f98a89b782961da39381e
5f3f98a89b782961da39381e- 141.8false
- 238.8false
- 337.8false
- 439.8true
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Answer : 4. "39.8"
Q: The average salary, per head, of all the workers of an institution, is Rs. 60. The average salary of 12 officers is Rs. 400; the average salary, per head, of the rest is Rs. 56. The total number of workers in the in situation is
2118 05f2a89b8cef453383f1ed26c
5f2a89b8cef453383f1ed26c- 11032true
- 21020false
- 31030false
- 41035false
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Answer : 1. "1032 "
Explanation :
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? 2117 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 weight of Sudesh, Jyothi and Ritu is 89 kg. If the average weight of Sudesh and Jyothi be 98 kg and that of Jyothi and Ritu be 83 kg, then the weight of Jyothi is
2110 05f3f922654900c5349e3813e
5f3f922654900c5349e3813e- 158false
- 256false
- 366false
- 495true
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Answer : 4. "95"
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? 2106 05d19cf5a1388cd24f0860eef
5d19cf5a1388cd24f0860eef- 154 yearsfalse
- 255 yearsfalse
- 356 yearstrue
- 458 yearsfalse
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Answer : 3. "56 years "
Explanation :
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Q: What is the average of the following numbers?
38, 92, 45, 25, 60
2088 05da059f500e22578c9e9a658
5da059f500e22578c9e9a65838, 92, 45, 25, 60
- 148false
- 254false
- 356false
- 450false
- 5None of thesetrue
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Answer : 5. "None of these"
Q: The average weight of 29 students is 40 kg. If the weight of teacher be included the average weight increased by 400 gms. The weight of the teacher is-
2081 0603dce2ee759ac364c8ba6f3
603dce2ee759ac364c8ba6f3- 150 kgfalse
- 249 kgfalse
- 352 kgtrue
- 455 kgfalse
- 5None of thesefalse
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Answer : 3. "52 kg "
Q: The average age of students in a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is:
2073 05ed73fd04bd6e60aba370eb4
5ed73fd04bd6e60aba370eb4- 11: 4false
- 24 : 2false
- 32 : 3true
- 43 : 4false
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