SSC CHSL Model Paper 17

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Directions (67-70) : The table below indicates the percentage of students and the ratio of boys and girls in the various streams of a college.
(Total Students = 2600)

\table \Stream,\CE,\CS,\IT,\ME,\EC; % \Students ,20%,18%,21%,22%,19% ;\Boys : \Girls, 3: 2,4: 5,3 : 4,6:5,9 : 10

Question : 69 of 100

Marks: +1, -0

If the data about the number of girls enrolled in the various streams in represented by a pie-chart, what is the central angle of the sector representing the number of girls in the ME stream, to the nearest whole degree?

68°
70°
72°
74°

Validate

Solution:

Total number of girls enrolled in various stream

=2/5×20/100×2600

+5/9×18/100×2600

+4/7×21/100×2600

+5/11×22/100×2600

+10/19×19/100×2600

= 208 + 260 + 312 + 260 + 260 = 1300
Number of girls in ME stream

=5/11×22/100×2600=260

Required central angle =

260/1300×360=72°

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