In a word game, you choose a tile from a bag, replace it, and then choose another. If there are 21 vowels and 15 consonants, what is the probability you will choose a consonant and then a vowel?
35/8
1/36
35/4
35/144

Question

In a word game, you choose a tile from a bag, replace it, and then choose another. If there are 21 vowels and 15 consonants, what is the probability you will choose a consonant and then a vowel? 
35/8
 1/36
 35/4
 35/144

anonymous · Answer

If you replace the tiles, it should be the probability of drawing the consonant multiplied by the probability of drawing a vowel.

(15/36)*(21/36) = (5/12)*(7/12) = (35/144) which is about 24.3055556% chance

anonymous · Answer

If you don't replace the tiles then instead do (15/36)*(21/35) do get 1/4  or 25%