A five-sided solid has the numbers 1, 2, 3, 4, and 5. What is the probability of rolling two five-sided number solids and getting a sum of either a 3 or an 8?
A. 6/625
B. 9/625
C. 6/25
D. 1/5

Question

A five-sided solid has the numbers 1, 2, 3, 4, and 5. What is the probability of rolling two five-sided number solids and getting a sum of either a 3 or an 8?
	A. 6/625
	B. 9/625
	C. 6/25
	D. 1/5

sidsiddhartha · Answer

ok the five sided solid will have total 25 outcomes

sidsiddhartha · Answer

and u can have sum of three(3) by --(2+1)=3
and(1+2)=3
ok

sidsiddhartha · Answer

so we can have sum of three by 2 ways

sidsiddhartha · Answer

and we can have sum of 8 by--
(3+5)=8
(5+3)=8
(4+4)=8
so total 3 ways 
right?

sidsiddhartha · Answer

so getting a sum of either a 3 or an 8 is possible in=(3+2)=5 ways
so your required probability
$$P=5/25=1/5$$

sidsiddhartha · Answer

got it?

anonymous · Answer

yes thank you very much

sidsiddhartha · Answer

yw!!