Consider the sequence `3,6,9,12,...,99`. Find the sum of square of each terms of the given sequence.

Consider the sequence 3,6,9,12,...,99 . Find the mean of the sequence.

Consider the sequence 3,6,9,12,...,99 .Find the variance of the sequence.

Find the sum of first 11 terms of the sequence 20,25,30.......

Consider the sequence 3,6,9,12,...,99 How many terms are there in the given sequence?

The algebraic form of an arithmetic sequence is 6n+5. Find the sum of first 20 terms of this sequence?

Consider arithmetic sequence 180,176,172,........ Find the 20th term of this sequence

What is sum of the first.20 natural numbers? ii) The algebraic form of an arithmetic sequence is 6n+5. Find the sum of the first 20 terms of this sequence.

The algebraic form of an arithmetic sequence is 8n+7 . Find the sum of first 30 terms of this sequence.

Find the sum to n terms of the sequence 7,77,777,7777,…….

Consider the GP 3,6,12,…… Find the value of n so that sum to n terms of this GP is 381.