Quant Mania: Data Interpretation

Dear Readers,
Today we are presenting the Data Interpretation questions set which is based on Bar Graph and Line Graph together in today's Quant Mania Session. Try It.

Data Interpretation (Bar Graph & Line Graph)

Directions (Q. 1-5): The bar graph shows the total number of children in five different school and the line graph shows the percentage of girls in them.



1. What is the approximate percentage of boys in School P and R together?

a) 66%
b) 78%
c) 81%
d) 84%
e) 77%



2. What is the total number of boys in School S and School T together?

a) 3045
b) 3054
c) 3085
d) 3025
e) 3042



3. What is the average number of boys in School R and School T together?

a) 1612
b) 1625
c) 1675
d) 1655
e) 1635



4. What is the ratio of the number of girls in School P to the number of boys in School T?

a) 35:8
b) 6:35
c) 7:35
d) 35:3
e) None of these



5. The number of boys in School T is approximately what per cent of the number of girls in School S?

a) 778%
b) 775%
c) 730%
d) 788%
e) 745%



Solution

1. e
Number of boys in School P= 1500*(80/100) = 1200
Number of boys in School R= 2000*(75/100) = 1500
Total number of students in P & R together = 1500+2000 = 3500
So, required % = (2700/3500)*100=77.14% = 77 (approx)

2. d
Total number of boys in school S & T together is
= 1500*(85/100) +2500*(70/100)
= 1275+1750
= 3026

3. b
Required Average is
= ½[2000*(75/100) +2500*(70/100)]
= ½[1500+1750]
= ½*3250
= 1625

4. b
Required Ratio is
= 1500*(20/100):2500(70/100)
= 6:35

5. a
Number of boys in School T = 2500*(70/100) = 1750
Number of girls in School S = 1500*(15/100) = 225
Required % = (1750/225)*100 = 777.77%= 778 (approx)

Thanks!!

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