CBSE BOARD XII, asked by sert52, 1 year ago

Find the sum of all odd integers between 2 & 100 divisible by 3.

Answers

Answered by Anonymous
12

Find the sum of all odd integers between 2 & 100 divisible by 3.

Good question,

Here is your perfect answer!

Odd integers btw 2&100 are 3,9,15,21...99.

Here d= 6.

To find n,

=) an = a + (n-1)6

=) 99 = 3 + (n-1)6

=) 99-3 = (n-1)6

=) 96/6 = n-1

=) 16 = n-1

=) 17 = n

Since Sn = n/2 (a + l)

S17 = 17/2 * (3+99)

= 17/2 * 102

= 17* 51

= 867.

Answered by generalRd
9
Hi mate

Here is your answer

Plz refer to the attachment

Hope it helps

BE BRAINLY////
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