How many numbers from 1 to 100 are multiples of 3 but not 5?
I answered this below; refer to your previous question!
thank you Lena......
To determine the number of multiples of 3 but not 5 from 1 to 100, we can use a two-step process:
Step 1: Find the number of multiples of 3 from 1 to 100.
Step 2: Subtract the number of multiples of 3 that are also multiples of 5.
Step 1: Finding the number of multiples of 3 from 1 to 100
Divide 100 by 3 to find the quotient: 100 ÷ 3 = 33.33...
Since we're looking for whole numbers, we can take the floor or round down to the nearest whole number, which is 33.
So, there are 33 multiples of 3 from 1 to 100.
Step 2: Subtracting the number of multiples of 3 that are also multiples of 5
Divide 100 by 15 (LCM of 3 and 5) to find the quotient: 100 ÷ 15 = 6.66...
Taking the floor or rounding down to the nearest whole number gives us 6.
So, there are 6 numbers that are multiples of both 3 and 5 from 1 to 100.
Now, subtract the number of common multiples from the total number of multiples of 3:
33 - 6 = 27.
Therefore, there are 27 numbers from 1 to 100 that are multiples of 3 but not 5