Will Fan&Medal
Cards with the numbers 1 through 40 are placed in a box and thoroughly shuffled.

What is the probability of randomly selecting a card with a number less than 10 or a multiple of 15?

Question

Will Fan&Medal 
Cards with the numbers 1 through 40 are placed in a box and thoroughly shuffled.

What is the probability of randomly selecting a card with a number less than 10 or a multiple of 15?

anonymous · Answer

This is favored/total.
total is 40!
favored are less than 10 (9)+ multiple of 15 less than 40 (15 and 30.
that is 9+2/40, or 11/40

11/40

anonymous · Answer

Thank you! I will let you know if it is right or not. :)

anonymous · Answer

Um what?

anonymous · Answer

nothing