Cards with the numbers 1 through 50 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 12?

A.

B.

C.

D.

Question

Cards with the numbers 1 through 50 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 12?
 
 A.
 
 
 B.
 
 
 C.
 
 
 D.

anonymous · Answer

hold on

anonymous · Answer

There are 9 cards less than 10. multiples of 12 are 12, 24, 36, and 48, so there are 4 multiples. 9+4=13. So the chance is 13/50

anonymous · Answer

wow you did that without any options?

anonymous · Answer

Well options are just the entry method, they aren't necessary to solve the question. They generally do make it easier though

anonymous · Answer

you are like super smart

anonymous · Answer

I'd like to think that, but I mean I'm in 10th grade so it's pretty natural to solve these kinds of problems.

anonymous · Answer

that explains it... i'm in 7th so of course its going to be easy for you

anonymous · Answer

Well not everything before my current grade is easy for me though, I've forgotten a ton of it.

anonymous · Answer

lol i imagine