Question

The sum of all natural numbers from 100 to 300 which are exactly divisible by 4 or 5 is​

Answer 1

Answer:

Step-by-step explanation:

tne numbers are 120,140.................300

it forms an AP

a=120, d=20

aₙ=300

300=a+(n-1)d

300=120+(n-1)20

180=(n-1)20

n-1=9

n=10

Sₙ=n/2{a+l}

=1o/2[120+180}

=5*300

=1500 ans

Answer 2

refer to the attachment..

MARK AS BRAINLIEST ✌✌