1.  If a boy spends $900 in one month and the average expenditure of that month is $30, find how many days are there, in the month. 
a.   30 
b.   31 
c.   29 
d.   28




2.  What is the average of even numbers from 1 to 91? 
a.   45 
b.   47 
c.   46 
d.   48




3.  Find the average of 8 consecutive numbers 7, 8, 9, 10, 11, 12, 13 and 14. 
a.   10.5 
b.   10 
c.   11.5 
d.   11




4.  A man walks 1 mile with the speed of 20 miles per hour and another 1 miles with the speed of 10 miles per hour. Find his average speed for covering whole distance of 2 miles. 
a.   12 miles /hr. 
b.   12.5 miles /hr. 
c.   13.3 miles /hr. 
d.   13.5 miles /hr.




5.  A person covers 8miles at a speed of 2 mile/hr, 12miles at the speed of 3 mile/hr and 15 miles with the speed of 5 mile/hr. Find the average speed during the entire journey. 
a.   35/11mile/hr. 
b.   25/11mile/hr. 
c.   7/11mile/hr. 
d.   15/11mile/hr.




6.  A bus covers 20% of the journey at 20 mile/hr, 40% of the journey at 30 mile/hr and the remaining at 20 mile/hr. Find the average speed of the bus during the entire journey. 
a.   331/15mile/hr. 
b.   300/13mile/hr. 
c.   287/13mile/hr. 
d.   13/22 mile/hr.




7.  The average weight of 5 persons is 35 pounds. If one more person is added, the average weight would remain the same. Find the weight of the new person. 
a.   40 pounds 
b.   35 pounds 
c.   32 pounds 
d.   41 pounds




8.  Find the average of all the prime numbers lying between 20 and 40. 
a.   10 
b.   15 
c.   20 
d.   30




9.  Find the average of all prime numbers between 1 and 30. 
a.   20 
b.   11.8 
c.   12 
d.   12.5




10.  Find the average of first 30 natural numbers. 
a.   10.5 
b.   15.5 
c.   13.5 
d.   13




11.  Find the average of first 10 multiples of 5. 
a.   55.8 
b.   70 
c.   50 
d.   27.5




12.  The average of 5 consecutive numbers is 20. Find the largest of these numbers. 
a.   23 
b.   18 
c.   22 
d.   52




13.  The average of 4 consecutive even numbers is 25. Find the difference between the highest, and lowest of these numbers? 
a.   4 
b.   6 
c.   1 
d.   3




14.  The average of four consecutive even numbers is 27. find the largest of these numbers? 
a.   52 
b.   59 
c.   35 
d.   30



