The answer is 11.
11 ÷ 2 = 10.1
11 ÷ 3 = 9.2
11 ÷ 4 = 2.3
I tried guess and check. Here how I've done it...
For 2,
I've think of random numbers divisible by 2 and I add 1.
For 3,
I've think of random numbers divisible by 3 and I add 2.
For 4,
I've think of random numbers divisible by 4 and I add 3.
Make sure that things will go on based on the question / problem when doing that kind of method.
(Sorry, can't explain it well)
