wongpcla wrote:

how do I check how many muｌtiple of 4 between 11-100?

Can anyone give me the formula, thank you

Definitely it has a formula-

Multiple of x in the range =

\frac{(last multiple of "x" in the range - first multiple of "x" in the range)}{x} +1

Now in the first case we need the multple of 4 in the range from 11 to 100, so applying the formula

Multiple of 4 =

\frac{(96-12)}{4}+ 1 (Last multiple of 4 in the range from 11 to 100 is 96 and the first multiple in the range is 12)

i.e equal to 22 nos.

In second case

Multiple of 5 =

\frac{(100-15)}{5}+ 1i.e equals to 17 nos.

Hence A > B

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