Counting up from 1, there is a number divisible by 3 every 3 numbers. Thus to find out how many numbers are divisible by 3, we just have to divide the number we're counting to by 3. In this case, the top number is 50, so do:
50/3 = 16 with two remainder.
Because the numbers divisible by 3 come last in every set of 3 numbers, we can discard the remainder. Therefore there are 16 numbers between 1 and 50 that are divisible by 3.
Chat with our AI personalities
There are 24.
50 of them if you count 300.
Oh, dude, let me break it down for you. So, we start at 21 because it's the first number between 20 and 50 that's divisible by 3, and then we just keep adding 3 until we hit 48. So, that gives us 10 numbers in total. Easy peasy, right?
Using the tn formula, t1=56, the last number, tn=497, and d=7. Therefore, 497=56+(n-1)7. 448=7n, and n=64. So there are 64 numbers between 50 and 500 that are divisible by 7.
There are 8 odd numbers less than 50 that are divisible by 3 They are 3, 9, 15, 21, 27, 33, 39, and 45.