Average Practice Question and Answer
8 4 Answer : 4. "2021"
4 Answer : 3. "40"
4 Answer : 1. "100"
4 Answer : 2. "Rs.310"
4 Answer : 4. "4"
4 Answer : 4. "60"
4 Answer : 1. "264"
4 Answer : 3. "69"
Q: The average of 5 consecutive odd numbers A, B, C, D and E is 45. What is the product of B and D? 1010 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? 1027 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? 1200 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- 1537 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. 1072 05d19dc981388cd24f0860f15
5d19dc981388cd24f0860f15- 14.5false
- 25false
- 32false
- 44true
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Answer : 4. "4"
Explanation :
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Q: The average of three numbers is 40. First of them is two times of the seconds and the second is three time of the third. So, what is the difference between the largest and smallest number? 1095 05d19dded7619fe30b9d345a3
5d19dded7619fe30b9d345a3- 130false
- 236false
- 346false
- 460true
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Answer : 4. "60"
Explanation :
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Q: The average of three numbers is 154. The first number is double of the second number and the second is double of the third one. The first number is 3019 05d19dec87619fe30b9d345a8
5d19dec87619fe30b9d345a8- 1264true
- 2132false
- 388false
- 466false
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Answer : 1. "264"
Explanation :
let x y and z is three number
x:y
2:1
y:z
2:1
then we can find x:y:z is will be 4:2:1
Then 7/3=154
1=66
then the x will be=66*4=264
Q: The average of marks obtained by 14 students was 71, but it was found later that one of the student’s mark was accounted as 42 instead of 56 and for the other student; it was accounted as 74 instead of 32. So, the find the actual average? 1138 05d19df8b7619fe30b9d34a61
5d19df8b7619fe30b9d34a61- 167false
- 268false
- 369true
- 471false
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Answer : 3. "69"
Explanation :
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