Question

find the sum of all natural numbers between 101 and 201 which are divisible by 4​

Answer 1

Answer:

If this is question then solution is seemingly simple. Let us consider the first number divisible by 4 in the close proximity of 101 is 104 (a number to be divisible by 4, the last two digit of the number must be a multiple of 4). n = 25. There will some 25 numbers between 101 - 200 divisible by 4.

Step-by-step explanation:

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Answer 2

First term between 101 and 201 which is divisible by 4, a = 104

Last term between 101 and 201 which is divisible by 4, an = 200

Number of terms between 101 and 201 which are divisible by 4, n = 24

Formula:

S = n/2 ( a + an )

Explanation:

By putting the respected values, we get

S = 24/2 ( 104 + 200 )

S = 12 ( 304 )

S = 3,648

Answer:

The sum of all the natural numbers between 101 and 201 which is divisible by 4 is 3,648 .