11.
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
12.
The average of 50 numbers is 30. If two numbers, 35 and 40 are discarded, then
the average of the remaining numbers is nearly:
A.28.32
B.29.68
C.28.78
D.29.27
View Answer With Explanation
13.
A Batsman makes a score of 87 runs in the 17th inning and thus increases his average
by 3. Find his average after 17th inning.
A.40
B.39
C.52
D.55
14.
The average weight of 8 person's increases by 2.5 kg when a new person comes in
place of one of them weighing 65 kg. What might be the weight of the new
person?
A. 76 kg B.76.5 kg
C. 85 kg D.Data inadequate
E. None of these
15. A motorist travel to a place 150 km away
at an avearge speed of 50 km/hr and returns ar 30 km/hr.His average speed for
the whole jouney in km/hr is
A. 35 B.
37
C.
37.5 D. 40
16. The average score of a cricketer 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
View Answer With Explanation
17.
he captain of a cricket team of 11
members is 26 years old and the wicket keeper is 3 years older. If the ages of
these two are excluded, the average age of the remaining players is one year
less than the average age of the whole team. What is the average age of the
team?
A. 23 years B. 24 years
C. 25 years D. None of these
18. There were 35 students in a hostel. Due
to the admission of 7 new students the expenses of the
mess were increased
by Rs.42 per
day while the
average expenditure per
head diminished by Re 1. What was the original expenditure of the mess?
A.Rs. 450
B.Rs. 320
C.Rs. 550
D.Rs. 420
View Answer With Explanation
19.
The average monthly income of P and Q is Rs. 5050. The average monthly income
of Q and R is Rs. 6250 and the average monthly income of P and R is Rs. 5200.
The monthly income of P is:
A. 3500 B.4000
C. 4050 D.5000
20.
The average age of husband, wife and their child 3 years ago was 27 years and
that of wife and the child 5 years ago was 20 years. The present age of the
husband is:
A. 35 years B.40 years
C. 50 years D.None of these
