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.36/2500
B.13/100
C.13/50
D.7/25

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.36/2500
B.13/100
C.13/50
D.7/25

hartnn · Answer

will help you with numerator, but you know what'll come in denominator ?

anonymous · Answer

no

hartnn · Answer

how many total possibilities are there if i select 1 card from 50 cards ?

anonymous · Answer

50

hartnn · Answer

yes, thats your denominator.

hartnn · Answer

now numerator, how many numbers are less than 10 from 1 to 50 ?

hartnn · Answer

just for your info.
there are 9 such numbers
and multiples of 12 are 4 
so, your numerator is 9+4=13
and your answer becomes 13/50