Question

Given three positive numbers a, b, and c. Find the number of positive integers less than d that are divisible by either of a, b or c.

Answer 1

Step-by-step explanation:

a=1

b=2

c=3

d=4

An=4(last term)

n=?(number of terms)

d=1(common difference)

a=1(first term)

An=a+(n-1)d

4=1+(n-1)1

4/1=1+(n-1)

4-1=n-1

3=n-1

3+1=n

n=4

The number of postive integers are 4