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# How many numbers between 1000 and 2020 are multiples of 3 or 5​

• Réponse publiée par: cleik

multiples of 3 between 1000 & 2020 is 340 and the multiples of 5 between 1000 & 2020 is 204

• Réponse publiée par: cland123

640 numbers are multiples of 3.

385 numbers are multiples of 5.

128 numbers are multiples of both 3 and 5.

Step-by-step explanation:

There is a technique on getting those kind sof problems. Let's try solving for the number of multiples of 3.

We first get the highest possible number that is a multiple of 3. Which is 2,019. And now we get the lowest possible number that is a multiple of 3. Which is 102.

Subtract the highest possible number to the lowest possible number.

(HPN - Highest Possible Number. | LPN - Lowest Possible Number.)

=HPN - LWP

=2,019 - 102

=1,917

After getting the difference, now you have to divide it by the multiples you have, which is 3. So

=1,917 ÷ 3

=639

=639 + 1

=640

Now let's try finding the number of the multiples of five in between the numbers 2020 - 100.

We do the same method. But this time. Get the HPN that is divisible by 5, which is 2020. Then, get the LPN, which is 100. Now, subtract.

= HPN - LPN

= 2020 - 100

= 1,920

Then we divide it by the multiples we have, which is 5.

=1,920 ÷ 5

=384

=384 + 1

=385

If you're finding the numbers of multiples of the two numbers, meaning that this number is supposed to be divisible by the first number AND the second number, all we need to do is multiply the first and second number.

=1st N × 2nd N

=3×5

=15

And this is where we do the same method we did with the last two. Find the HPN and the LPN

that is divisible by 15.

=2,010 - 105

=1,905

Then divide it with the multiple.

=1,905 ÷ 15

=127

=127 + 1

128

That's all!

• Réponse publiée par: taekookislifeu

896 (at least, I think it is)

Step-by-step explanation:

2020-100=1920

1920+1=1921

1921/3=640

1921/5=384

1921/15=128

640+384=1024

1024-128=896

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