Math, asked by Tanvi2500, 1 year ago

Find the sum of all natural numbers between 200 to 1502 which are exactly divisible by 3

Answers

Answered by avhibunty

19

A.P are 201,204,207...........1500

a=201
d= 3
l=1500

Sn= a+(n-1)d
1500= 201+(n-1)3
1500=201+3n-3
3n=1500-198
3n=1302
n=1302/3
n=434

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