Question

Given below are two statements: One is lebelled as Assertion A and the other is labelled as Reason R.
Assertion A: The number of parallelograms in a chess board is 1296.
Reason R: The number of parallelograms when a set of m parallel lines is intersected by another set of n parallel lines is mC2.nC2
In the light of the above statements, choose the correct answer from the options given below:

• A. Both A and R are true and R is the correct explanation of A
• B. Both A and R are true but R is not the correct explanation of A
• C. A is true but R is false
• D. A is false but R is true

Answer 1

Answer: (A)

Both A and R are true and R is the correct explanation of A

Answer 2

The correct answer is(A): Both A and R are true and R is the correct explanation of A