Bar Charts - General Aptitude

Q1:

The average production of 1996 and 1997 was exactly equal to the average production of which of the following pairs of years?

A 2000 and 2001

B 1999 and 2000

C 1998 and 2000

D 1995 and 2001

ANS:D - 1995 and 2001

Average production (in 10000 tonnes) of 1996 and 1997 40 + 60 = 50.
2
We shall find the average production (in 10000 tonnes) for each of the given alternative pairs:
2000 and 2001 = 50 + 75 = 62.5.
2
1999 and 2000 = 65 + 50 = 57.5.
2
1998 and 2000 = 45 + 50 = 47.5.
2
1995 and 1999 = 25 + 65 = 45.
2
1995 and 2001 = 25 + 75 = 50.
2
Therefore The average production of 1996 and 1997 is equal to the average production of 1995 and 2001.