In a class there are 20 boys and 20 girls. In how many ways can a boy and a girl be selected?
Choose the correct choice from the following answers
A) 508	B) 400	C) 800	D) 570	E) 503
We can select one boy from 20 boys in 20 ways.   We select one girl from 20 girls in 20 ways   We select a boy and girl in 20 * 20 ways i.e., = 400 ways.   Answer:400
<result>B</result>
In a class there are 20 boys and 20 girls. In how many ways can a boy and a girl be selected?