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The odd numbers on a regular die are painted red. On a second regular die, the numbers that are one less than a perfect square are painted red. If both dice are thrown, what is the chance that both come up red

 Mar 2, 2020

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 #1
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If the odd numbers of the first die are painted red, the numbers 1, 3, and 5 are painted red.

On the second die, the only number that is painted red is the number 3.

To get a red numer to be rolled on the first die has a probability of 3/6.

To get a red number to be rolled on the second die has a probability of 1/6.

To get a red number to be rolled on both dice has a probability of (3/6) x (1/6)  =  3/36  =  1/12

 Mar 2, 2020
 #1
avatar+18922 
+1
Best Answer

If the odd numbers of the first die are painted red, the numbers 1, 3, and 5 are painted red.

On the second die, the only number that is painted red is the number 3.

To get a red numer to be rolled on the first die has a probability of 3/6.

To get a red number to be rolled on the second die has a probability of 1/6.

To get a red number to be rolled on both dice has a probability of (3/6) x (1/6)  =  3/36  =  1/12

geno3141 Mar 2, 2020

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