Assertion and Reasoning — task. Mathematics CBSE, Class 9 New.

PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo

Assertion (A): The sum of the first \(18\) multiples of \(38\) is \(6518\).

Reason (R): The sum of the first \(n\) multiples of any positive integer \(k\) is

k (\frac{n (n + 1)}{2})

Choose the best answer

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

Previous exercise

Exit to the topic

Next topic

Send feedback

Did you find an error?

Send it to us!

5. Assertion and Reasoning

Exercise condition: