Question

find the sum of first 50 possitive integers devicebal by 5​

Answer 1

Answer:

step 1 Address the formula, input parameters & values.

Input parameters & values:

The number series 5, 10, 15, 20, 25, 30, 35, 40, 45, . . . . , 250.

The first term a = 5

The common difference d = 5

Total number of terms n = 50

step 2 apply the input parameter values in the AP formula

Sum = n/2 x (a + Tn)

= 50/2 x (5 + 250)

= (50 x 255)/ 2

= 12750/2

5 + 10 + 15 + 20 + 25 + 30 + 35 + 40 + 45 + . . . . + 250 = 6375

Therefore, 6375 is the sum of first 50 positive integers which are divisible by 5.

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