Felipe must choose a number between 49 and 95 that is a multiple of 2, 6, and 10. Write all the numbers that he could choose.

Question

mathstudent55 · Answer

What are the multiples of 10 between 49 and 95?

anonymous · Answer

50, 60, 70, 80, and 90. But i guess 60 would be the only one.

mathstudent55 · Answer

Not so fast.
Those are the correct multiples of 10.
All multiples of 10 are automatically multiples of 2, so all those numbers are divisible by both 10 and 2. Which of them are also divisible by 6? Since they are all divisible by 2, all you need to see which ones are also divisible by 6. A number is divisible by 6 is it is divisible by both 2 and 3.