NOTICE THAT IT SAYS DIVISIBLE BY 2,3,5. The last digit of the numbers divisible by 5 are either 0 or 5.

base on this statement,

35= is 35 divisible by 2? no

30= is 30 divisible by 2? yes

       is 30 divisible by 3? yes

       is 30 divisible by 5? yes

The question is looking for the largest number from 20 to 40 which is divisible by 2, 3, and 5. Largest, therefore, 30 is the number.

Answer:

30 explanation: because 2x15=30 , 3x10=30, 5x6=30

so 30 is visible to 2,3,and 5