Assertion and Reasoning — task. Maths CBSE Live product, Class 10 (2026-27).

Assertion (A): Sum of \(51, 48, 45,...,\) to \(14\) terms is \(441\).

Reason (R): The \(n^{th}\) term of the \(A.P\) is given by \(t_{n} = a+(n-1)d\).

Assertion (A) is true but reason (R) is false.
Assertion (A) is false but reason (R) is true.
Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Did you find an error?

2. Assertion and Reasoning