Directions: The bar-chart shows the total number of members enrolled in different years from 1990 to 1994 in two gymnasiums A and B. Based on this bar chart, solve the following questions.
 
Important for :
1
If in the year 1995, there is 30% increase in the total number of members enrolled in 1994 in both gymnasiums, then find the total number of members enrolled in 1995.
» Explain it
D
Total number of member enrolled in 1995

= 130% of (150 + 70)

=    220 × 130  = 286
100

Hence, option D is correct.

2
The ratio of the total number of members of both gymnasiums in 1991 to the total number of members in 1994 of both gymnasiums is
» Explain it
E
Reqd ratio

=   No. of members in Gym of A & B in 1991
No. of members in Gym of A & B in 1994

=   62 + 210   =   270   =   27   =  27 : 22
70 + 150 220 22

Hence, option E is correct.

3
The number of members of gymnasium A in 1991 is what per cent of the number of members of gymnasium B in 1994?
» Explain it
E
Reqd. % = No. of members in Gym of A in 1991  × 100
No. of members in Gym of B in 1994

=   60  × 100 = 40%
100

Hence, option E is correct.
4
The number of enrolled members in gymnasium A from 1991 to 1994 together is what percent more than the number of members enrolled in gymnasium B in 1993 and 1994 together? (Rounded off to two-digit decimal places)
» Explain it
B
Total number of members enrolled in Gymnasium A from 1991 to 1994 = 60 + 140 + 200 + 70 = 470

Total number of members enrolled in gymnasium B in 1993 and 1994 together = 240 + 150 = 390

∴    Difference = 470 – 390 = 80

∴   Reqd %  =   80  × 100
390

=   20.51% 

So, it's clear that the number of enrolled members in gymnasium A from 1991 to 1994 together is 20.51% more than the number of members enrolled in gymnasium B in 1993 and 1994 together.

Hence, option B is correct.
 
5
The total number of members enrolled in gymnasium B in 1993 and 1994 together is what per cent more than the number of members enrolled in gymnasium in 1990 and 1994 together?
» Explain it
C
Total number of members enrolled in Gymnasium B in 1993 and 1994 together = 240 + 150 = 390

Total number of members enrolled in Gymnasium A in 1990 and 1994 together = 170 + 70 = 240

∴    Difference = 390 – 240 = 150

∴   Reqd % =  150  × 100
240

= 62.5%

Hence, option C is correct.


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