Average Problems Practice Question and Answer
8 4 Answer : 1. "85 kg"
4 Answer : 2. "11 years"
4 Answer : 1. "12 years"
4 Answer : 4. "2021"
4 Answer : 3. "40"
4 Answer : 1. "100"
4 Answer : 2. "Rs.310"
4 Answer : 4. "4"
Q: Average weight of 10 men increases by 3.5 kg when a man of 50 kg is replaced by a new man what is the age of new person? 1279 05d19d3907619fe30b9d34595
5d19d3907619fe30b9d34595- 185 kgtrue
- 284 kgfalse
- 382 kgfalse
- 480 kgfalse
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- SingleChoice
Answer : 1. "85 kg"
Explanation :
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Q: Average age of 21 men reduces by 1 year when a man of 32 years is replaced by a child. What is the age of that child? 1051 05d19d5011388cd24f0860efa
5d19d5011388cd24f0860efa- 110 yearsfalse
- 211 yearstrue
- 39 yearsfalse
- 48 yearsfalse
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Answer : 2. "11 years"
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? 1209 05d19d6201388cd24f0860eff
5d19d6201388cd24f0860eff- 112 yearstrue
- 214.5 yearsfalse
- 315 yearsfalse
- 417 yearsfalse
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- SingleChoice
Answer : 1. "12 years"
Explanation :
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Q: The average of 5 consecutive odd numbers A, B, C, D and E is 45. What is the product of B and D? 906 05d19d71f1388cd24f0860f05
5d19d71f1388cd24f0860f05- 12107false
- 22205false
- 31935false
- 42021true
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Answer : 4. "2021"
Explanation :
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Q: The average of nine numbers is 30. The average of first five numbers is 25 and that of for last three numbers is 35, then what will be sixth number? 891 05d19d83d1388cd24f0860f0b
5d19d83d1388cd24f0860f0b- 120false
- 230false
- 340true
- 450false
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Answer : 3. "40"
Explanation :
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Q: The average of marks obtained by 120 candidates in an examination is 35. The average of marks obtained by passed candidates is 39 and that of for failed candidates is 15. What is the no. of passed candidates? 1070 05d19d8bd1388cd24f0860f10
5d19d8bd1388cd24f0860f10- 1100true
- 2120false
- 3150false
- 4140false
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Answer : 1. "100"
Explanation :
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Q: The average daily income of A, B and C is Rs.450. If the average daily income of A and B is Rs.400. B and C is Rs.430; then the daily income of B will be- 1386 05d19db257619fe30b9d3459e
5d19db257619fe30b9d3459e- 1Rs.300false
- 2Rs.310true
- 3Rs.415false
- 4Rs.425false
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Answer : 2. "Rs.310"
Explanation :
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Q: The average of first three numbers is three times of the fourth number. If the average of all four numbers is 5, then find the fourth number. 952 05d19dc981388cd24f0860f15
5d19dc981388cd24f0860f15- 14.5false
- 25false
- 32false
- 44true
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Answer : 4. "4"
Explanation :
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