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free Online Test Average Questions and Answers Quiz 4

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Exercise

"Actions speak louder than words."
- (Proverb)
1 . After replacing an old member by a new member, it was found that the average age of five members of a club is the same as it was 3 years ago. What is the difference between the ages of the replaced and the new member?
A.  2 years B.    4 years
C.  8 years D.    15 years
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2 . Nine persons went to a hotel for taking their meals. Eight of them spent Rs.12 each on their meals and the ninth spent Rs.8 more than the average expenditure of all the nine. What was the total money spent by them?
A.  Rs.117 B.    130
C.  145 D.    150
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3 . The average of 25 results is 18. The average of first twelve of them is 14 and that of last twelve is 17. Find the thirteenth result.
A.  87 B.    78
C.  49 D.    55
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4 . A has 8 pencils, B has 10 pencils and C has 15 pencils, then the average number of pencils with them :
A.  8 B.    10
C.  15 D.    11
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5 . A, B, C, D, E, F are the only six families in Indira Nagar. A, B, C, D, E and F has 7, 8, 10, 13, 6 and 10 members in their families respectively. If 1 member from all the six families left their respective families to accommodate themselves in the hostel of IIM Lucknow, then the average number of members now in each family of Indira Nagar is :
A.  8 B.    9
C.  10 D.    13
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6 . The salary of A, B, C, D, E is Rs.8000, Rs.5000, Rs.11000, Rs.7000, Rs.9000 per month respectively, then the average salary of A, B, C, D and E per month is :
A.  Rs.7000 B.    Rs.8000
C.  Rs.8500 D.    Rs.9000
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7 . The average presence of students in a class on Monday, Tuesday and Wednesday is 30 and on the Wednesday, Thursday, Friday and Saturday is 28 then number of students who attended the class on Wednesday is, if the average number of students on all the six days is 27 :
A.  24 B.    25
C.  20 D.    40
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8 . The average salary of 12 employees of STAR plus is Rs.18,000 per month an d 15 employees of NDTV is Rs.16,000 per month. The average salary of all the 27 employees is :
A.  Rs.17000 B.    Rs.16500
C.  Rs.16888.88 D.    Data inadequate
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9 . Sri Krishna took the chariot and started his journey from Mathura to Gokul by his chariot at the speed of 40 km/hr and then, the same distance he travelled onn his foot at the speed of 10 km/hr from Gokul to Brindaban. Then he returned from Brindabann to Mathura via Gokul at the speed of 24 km/hr riding on the horse. The average speed of the whole trip is :
A.  20km/hr B.    25 km/hr
C.  19.2 km/hr D.    18.5 km/hr
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10 . The average age of 7 members of Patel’s family is 25 years. The average age of the same family 3 years ago was :
A.  21 B.    22
C.  25 D.    28
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