1) The average of 8
numbers is 16. If each of the numbers is multiplied by 5, what is the new
average?
2) France
scored 21 goals in 5 matches. The strikers accounted for (4/7)th of the total
goals scored. What is the striker's average goals per match?
3) Out of my monthly
income of Rs.5000, I spend Rs.3700 in January, save Rs.1700 in February, spend
Rs.4100 in M arch and spend Rs.2700 in April. Find my average monthly savings
from Jan-April
4) The average of the 10
numbers is 21. If the average of the first 6 is 15 and that of the last five is
19, find the 6th number.
5) If the average score
of 15 boys in a class is 85 and the average score of 10 girls in the same class
is 95, what is the class average score?
7) The average weight of
a group of 13 persons is 62.875kg. When a new person joins the group the
average weight increases to 62.985. What’s the weight of the person who joins
the group?
8) Yuraj Singh has the
average score of 54 in last 15 matches. After the last match his average
becomes 53. What’s the last match score of Yuvraj?
9) The average of 4
consecutive even numbers is 35. Find the 3rd of those numbers.
10) The average price of
3 items is Rs.150. If their prices are in the ratio 3: 5: 7 find the cheapest
item’s price.
11) 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 R and P is Rs.5200. find the monthly income
of P.
12) The arithmetic mean
of seventy-five numbers is calculated to be 35. If each number is increased by
5, then the mean of new number is.
13) The average of sqrt of 0.81, 60%, 3/2
14) A 41½ - foot string
is to be cut into 6 approximately equal lengths. The average length of each
piece will be
Answers:
1) 80 2) 2.4 3) Rs.1550 4) 25 5) 89
7) 64.415 8) 38 9) 36 10) 90 11) 4000 12) 40 13) 1 14) 6'11"
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