Question 1020004
Let g = # of girls in school
b = # of boys in school,
R = # of right-handed boys in school, and L = # of left-handed boys in school.

==> g = 1.6b
Also, R = 1.5L

Now it is given that L = 2.
==> R = 1.5*2 = 3
==> number of boys is b = R + L = 3+2 = 5
==> g = 1.6*5 = 8

==> #number of boys and girls in school is b + g = 5 + 8 = 13.