Q. 275.0( 1 Vote )

# Mark the correct alternative in the following:The number of parallelogram that can be formed from a set of four parallel lines intersecting another set of three parallel lines isA. 6B. 9C. 12D. 18

A parallelogram can be formed by choosing two parallel lines from the set of four parallel lines and two

parallel lines from the set of three parallel lines.

Two parallel lines from the set of four parallel lines can be chosen in 4C2 ways.

Two parallel lines from the set of three parallel lines can be chosen in 3C2 ways.

Number of parallelograms that can be formed =

4C23C2

= 6 3

= 18

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Permutations & Combinations | Analyze your learningFREE Class
Challenging Quiz on P&C | Test Yourself55 mins
Understand Permutations like never before60 mins
Check Your progress Part 2| Interactive Quiz: Permutation & Combination54 mins
Lecture on Combinations49 mins
Interactive Quiz on Division and distribution of objects17 mins
Interactive Quiz on Combinations50 mins
Lets see how good you can manage numbers | P&C Quiz Challenge41 mins