Question

school organised a picnic for students of grade 6, 7 and 8. 2/3 of the people who went on a picnic were children. If there were 120 children, how many adults were there?

Answer 1

Answer:

Total number of students=80

Percentage of girls=15%

Number of girls=15% of 80

=

100

15

×80

=

10

15

×8

=

5

15

×4

=3×4=12

Number of boys=80−12=68