GATE (GA) Textile 2018 Question Paper Solution | GATE/2018/GA/07

Question 07 (General Aptitude)

A set of 4 parallel lines intersect with another set of 5 parallel lines. How many
parallelograms are formed?

(A)20
(B)48
(C)60
(D)72
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No. of parallelograms=4_c_2 \times 5_c_2
No. of parallelograms=60 (Ans)

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