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free Online Test Average Questions and Answers Quiz 5

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Exercise

"I never see what has been done; I only see what remains to be done."
- Marie Curie
1 . The average salary of A, B is Rs.6000 and that of C, D and E is Rs.8000. The average salary of all the 5 people is :
A.  Rs.7200 B.    Rs.7000
C.  Rs.7500 D.    Cannot be determined
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2 . 6 months ago the present age of the student of class 10$^{th}$ was 14 years. 6 months hence, the age of the same students will be :
A.  15 years B.    15${1\over2}$
C.  20 years D.    None
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3 . The average salary of Rajesh, Bahadur and Amir is Rs.8000 per month. The average expenditure of Rajesh, Bahadur and Amir per month is Rs.5000. The average savings of all the 3 persons per month is :
A.  Rs.3000 B.    Rs.5000
C.  Rs.2500 D.    Rs.9000
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4 . The average of first five multiples of 3 is :
A.  3 B.    9
C.  12 D.    15
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5 . The average of the two digit numbers, which remain the same when the digits interchange their positions, is :
A.  33 B.    44
C.  55 D.    66
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6 . The average score of acricketer for ten matches is 38.9 runs. If the average for the first six matches is 42, then find the average for the last four matches.
A.  33.25 B.    33.5
C.  34.25 D.    35
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7 . Of the three numbers, the first is twice the second and the second is twice the third. The average of the reciprocal of the numbers is $7 \over 72$ . The numbers are :
A.  16, 8, 4 B.    20, 10, 5
C.  24, 12, 6 D.    None of these
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8 . The average temperature of the town in the first four days of a month was 58 degrees. The average for the second, third, fourth and fifth days was 60 degrees. If the temperatures of the first and fifth days were in the ratio 7 : 8, then what is the temperature on the fifth day?
A.  64 degrees B.    62 degrees
C.  56 degrees D.    None
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9 . The average age of 8 men is increased by 2 years when two of them whose ages are 21 years and 23 years are replaced by two new men. The average age of the two new men is :
A.  22 years B.    24 years
C.  28 years D.    30 years
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10 . 10 years ago, the average age of a family of 4 members was 24 years. Two children having been born (with age difference of 2 years), the present average age of the family is the same. The present age of the youngest child is :
A.  1 year B.    2 years
C.  3 years D.    4 years
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