The Total solution for NCERT class 6-12
Given:
27 boys and 14 girls.
Here the teacher hasto
(i) Select a boy among27 boys, and
(ii) Select a girlamong 14 girls.
Number of ways toselect one boy is 27C1 and similarly the numberof ways to select one girl is 14C1.
Hence, the number ofways to select 1 boy and 1 girl to represent the class in a function is
14C1 × 27C1 =14 × 27 = 378 ways.