JEE Main Mathematics question

Mathematics Permutations and Combinations JEE Main

There is a set of parallel lines intersecting a set of another parallel lines in a plane. The number of parallelograms formed, is

(A)
(B)Correct
(C)
(D)

Answer: (B)

Solution

A parallelogram is bounded by two lines of the first set and two lines of the second set. The pair from the first set can be chosen in

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Question ID VK-020588