Average Problems Practice Question and Answer
7 4 Answer : 4. "60"
4 Answer : 1. "264"
4 Answer : 3. "69"
4 Answer : 3. "75.9"
4 Answer : 1. "4500"
4 Answer : 2. "21"
4 Q:
5dcba07185d84c59cfbbffd5
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? 1097 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 3022 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? 1141 05d19df8b7619fe30b9d34a61
5d19df8b7619fe30b9d34a61- 167false
- 268false
- 369true
- 471false
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Answer : 3. "69"
Explanation :
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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? 1243 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 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? 1319 15d19f4b07619fe30b9d34af4
5d19f4b07619fe30b9d34af4- 14500true
- 24600false
- 34680false
- 44710false
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Answer : 1. "4500"
Explanation :
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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- 1363 05d19f5821388cd24f08614e7
5d19f5821388cd24f08614e7- 120false
- 221true
- 323false
- 422false
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Answer : 2. "21"
Explanation :
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Q: The average of nine consecutive odd numbers is 53. The least odd number is:
1902 05dcba07185d84c59cfbbffd5
5dcba07185d84c59cfbbffd5- 122false
- 227false
- 335false
- 445true
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Answer : 4. "45 "
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