Question

how many numbers between 1 and 300 by 3 and 5 together​

Answer 1

Answer:

There are 20 numbers between 1 and 300 divisible by 3 and 5 together.

Step-by-Step Explaination:

AP is 15, 30, 45.....300

a=15

d= 15

Sn=300

Sn = a + (n-1)xd

300= 15+ n-1 x 15

300= 15 + 15n - 15

300= 15n

n = 300/15

n = 20