Math, asked by mk9717562724, 8 months ago

find the sum of first 20 natural number which are divisible by 3

Answers

Answered by roomamalakar

0

Answer:

a=3, an=60

sn=n/2(an+a)

sn=20/2(60+ 3)

sn=10(63)

sn=630

Therefore sum of first 20 natural number which are divisible by 3 is 630

Step-by-step explanation:

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