An unbiased dice which has the first six consecutive odd numbers labelled on its faces, is thrown twice. Find the probability that the sum is even.
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You got me on the sum part.
This is true...
easy one........!
very very simle one
easy...............
I clicked the right choice but then it says I was wrong....??????
ANSWER IS 1/2
any odd no. plus any other odd no. equals an even no.
The numbers on the dice are 1, 3, 5, 7, 9, 11, which are the first 6 consecutive numbers. Since sum of two odd numbers is always even, for two throws, the sum of outcomes will always be even and so the probability is 1.
Sum of two odd numbers is always an Even number, the dice contains only odd numbers so the sum is always even
represent an odd number as 2n+1 (2n+1)+(2n+1)=4n+2 which is always even
The sum of 2 odd numbers will always be equal to 1. Since each surface of the dice has an odd number, the sum of any 2 faces would be 1. Therefore the probability that the sum is even would be 1.
represent an odd number as 2n+1 (2n+1)+(2n+1)=4n+2 which is always even thus,probability is 1
the answer is 1
every number will be odd, nad sum two odds is always an even number. Therefore 1
The sum of even is always even and sum of odds is also even we have 3 odd and 3 even on one dice. But we have two dices => we have 6 even and 6 odd numbers.
Thus P(e) = 12/12 = 1.
i hope the answer is 1/2 as when we throw twice there will be chance for 36 outcomes... am i correct??? for eg if in one dice 1 and the other 2 the sum is 3 and is odd na??
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Nope there are only odd nos. Marked on the dice so the sum of2odd no. Is even hence answer is 1....
i took the dice as a normal dice.. didn't read the qn carefully.... OOps
Oops, looks like I fell for the same thing as you Vijay. Lol
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sum of any two odds is even everytime