Question

Please help?

Answer 1

Paco uses a spinner to select a number from 1 to 5 inclusive, each with equal probability. Manu uses a different spinner to select a number from 1 through 10 inclusive, each with equal probability. What is the probability that the product of the numbers is less than 30?

Answer 2

There are only 50 outcomes. Why not count them?

1* All of 1-10
2* All of 1-10
3* 1-9 Missing 10 (1)
4* 1-7 Missing 8-10 (3)
5* 1-5 Missing 6-10 (5)

Looks like we're 8 short of 50.

Answer 3

So it would be 42/50?

Answer 4

No, 41, because I can't add, it would seem. 1 + 3 + 5 = 9

Answer 5

Oh yeah, sorry. I didn't see those numbers :p