SSC CGL 12 Jun 2019 Shift 1 Paper

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Question : 69 of 100

Marks: +1, -0

In a class of 60 students, 40% are girls. The average weight of the boys is 62 kg and that of the girls is 55 kg.
What is the average weight of the whole class?

59.2 kg
58.8 kg
59 kg
58.6 kg

Solution:

Total

=60

students
Girls

=24

Boys

=36

Average weight

=\ {36 \× 62+24 \× 55}/{60}

=\ {2232+1320}/{60}

=\ {3552}/{60}=59.2 \ {\kg}

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