@welshfella

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?

A.3/10

B.11/40

C.1/20

D.7/400

Question

@welshfella

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?

A.3/10

B.11/40

C.1/20

D.7/400

welshfella · Answer

sorry gotta go  now

anonymous · Answer

oh :c you can't help with this last question?

anonymous · Answer

@texaschic101 @iGreen

anonymous · Answer

@jdoe0001

anonymous · Answer

i think its b because less than 10 will be nine numbers and then multiples of 15 there are only 2 more in this problem , 15 and 30.  So 9 + 2 is 11 and theres a total of 40. so 11/40 ?

anonymous · Answer

probability of selecting a number <10 is 9/40
multiples of 15 is 2/40
add
9/40+2/40
11/40