Question

Find the sum of integers wch are divisible by 2 from 11 to 100

Answer 1

Hi Friend !!

Here's ur ans with solution :-


The number which is divisible by 2 from 11 to 100 forms an AP.

that is :-

12 , 14 , 16.............. 100

First term ( a ) = 12

Common difference ( d ) = 2

Last term ( an ) = 100

• an = a + ( n - 1 )d

100 = 12 + ( n - 1 ) × 2

100 = 12 + 2n - 2

100 = 10 + 2n

90 = 2n

90/2 = n

45 = n

So, there are 45 number between 11 to 100 which are divisible by 2.