English, asked by chikki52, 9 months ago

what is the sum of the multiple of 18 which are greater than 150 but less than 200

Answers

Answered by abdullahmasood399

1

Answer:

Easily,

A.P:162,180,198.

a=162. l=198. n=3

Sn= n/2 ( a + l)

= 3/2 ( 162 + 198)

= 1.5× 360= 540

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