Question

You have 2 dice and the sum of numbers is 7, what is the probability that one of the dice has number 1?

Answer 1

Hi Friend !!!!

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The no.of possible outcomes when two dice are thrown = 6² = 36


Sample space to get sum of numbers is 7 with one dice has number 1 = {(1,6) , (6,1)}

Total no.of favourable outcomes = 2

probability = No.of favourable outcomes / total no.of possible outcomes

= 2/36

= 1/13

Hope it helps u :-)

Answer 2

HELLO.......FRIEND!!

THE ANSWER IS HERE,

The total outcomes , when 2-dice are thrown,

$= > \: {6}^{2} = 36$

No.of favourable outcomes for getting the sum as 7 & one number is 1.

=> {1,6} & {6,1}

So, no.of Favourable outcomes => 2

Probability => 2/36

=> 1/18.

:-)Hope it helps u.