Math, asked by nemo29, 1 year ago

find the sum of all natural numbers between 100 and 200 which are divisible by 4.

Answers

Answered by kuldeep147
10
According to the question,

A.P = 104,108,...............196.

= a = 104 and d = a2-a1 = 108-104 = 4

= let An = 196

An = a+(n-1)d

= 196 = 104+(n-1)4

= 196-104 = (n-1)4

= 92/4 = n-1

= n = 23+1 = 24 terms.

Sn = n/2(a+l) (l = An)

= 24/2(104+196)

= 12 . 300 = 3600.is the answer

nemo29: first term can be 100?
nemo29: 100 is also divisible by 4 then why not 100??
nemo29: sayyy
kuldeep147: in this question it is said that between 100 and 200
nemo29: ok
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