In a committee of 5, which must be selected from 4 males ...
In a committee of 5, which must be selected from 4 males and 3 females. In how many ways can the members be chosen if it were to include 2 females?
144 ways
15 ways
185 ways
12 ways
Correct answer is D
For the committee to include 2 females, we must have 3 males, so that there should be 5 members.
That is, 4C3×3C2
= 4!(4−3)!3!×3!(3−2)!2!
= 4 × 3 = 12 ways
In how many ways can a team of 3 girls be selected from 7 girls? ...
The sum of the interior angles of regular polygon is 1800o. How many sides has the polygon?...
If sin θ = xy and 0o < 90o then find 1tanθ...
The variance of the scores 1, 2, 3, 4, 5 is ...
The diagram is the graph of y=6+x−x2. The graph intercepts the x- axis at P and R and the...
Evaluate 1 - (15 x 23) + ( 5 + 23)...
The area shaded with horizontal lines is the solution set of the inequalities; ...
If 3p = 4q and 9p = 8q - 12, find the value of pq. ...
Which of the following statement is true for the ste P = {-3.2 ≤ x < 5} where x is an integer...