Quant Quiz

Directions (1-5): Study the graphs carefully to answer the questions that follow:

Total number of children in 6 different schools and the percentage of girls in them





1.What is the total percentage of boys in schools R and U together (rounded off to two digits after decimal)
(1)78.55
(2)72. 45
(3)76.28
(4)75.83
(5)None of these

2.What is the total number of boys in School  T ?
(1)500
(2)600
(3)750
(4)850
(5)None of these

3.The total number of students in school R. is approximately what per cent of the total number of students in school S?
(1)83
(2)75
(3)78
(4)82
(5)94

4.What is the average number of boys in schools P and Q together?
(1)1425
(2)1575
(3)1450
(4)1625
(5)None of these

5.What is the respective ratio of the number of girls in school P to the number of girls in school Q?
(1)27 : 20
(2)17 : 21
(3)20 : 27
(4)41 : 21
(5)None of these

Answers
1.(4) No. of boys in school R & U together
= (2000 * 72.5)/100 + (1000 * 82.5)/100 = 1450 + 825 = 2275
Required % = 2275/3000 * 100 = 75.83

2.(3)

3.(1)

4.(2) Required average = ½ {(2500 * 60)/100 + (3000 * 55)/100} = 1575

5.(3) 40% of 2500 : 45% of 3000

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