There are 15 boys and 10 girls in a class.

There are 15 boys and 10 girls in a class. If three students are selected at random, in how many ways that 1 girl and 2 boys are selected ?

Quiz

Answer/Solution

1050

Steps/Work

n(s) = sample space = 25C3 = 2300
E = event that 1 girl and 2 boys are selected
n(E) = we have to select 2 boys from 15 and 1 girl from 10
= 15C2 * 10C1
= 1050
Ans - B

Probability Calculator / Auto Solver

There are boys and girls in a class. If three students are selected at random, in how many ways that girl and boys are selected?

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