Question

the number of numbers which are multiples of both 3 and 5 in the first hundred natural number is​

Answer 1

hi it is 15

hope it helps you

Answer 2

Answer:

Thus, The number of numbers which are multiples of both 3 and 5 in the first hundred natural number is​ = 6

Step-by-step explanation:

We need to find number of multiples of 3 and 5 in the numbers from 1 to 100

Now, since L.C.M  of (3,5) is 15

So, Number which is multiple of 3 and 5 must be a multiple of 15

So, to find number of numbers which are multiple of both 3 and 5 we find numbers which are multiple of 15

Multiples of 15 in first 100 natural numbers : 15 , 30 , 45 , 60 , 75 , 90

Number of numbers which are multiple of 15 in first 100 natural numbers = 6

Thus, The number of numbers which are multiples of both 3 and 5 in the first hundred natural number is​ = 6