Latest Elitmus Aptitude Question SOLUTION: Two pyramids are thrown with faces 1,2,4,6. Find the probability to get a sum of even number on an their faces? a) 5/8 b)3/4 (i dnt remember)

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(#M40154583) ELITMUS Numerical Ability question probability Keep an EYE

Two pyramids are thrown with faces 1,2,4,6. Find the probability to get a sum of even number on an their faces?
a) 5/8
b)3/4
(i dnt remember)

Asked In Elitmus Bushra (8 years ago)

Unsolved Read Solution (11)

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Read Solution (11) :

Sourabh Prasad  (8 years ago)

1 pyramid can show 4 different kind of arrangements

1,2,4=7
1,2,6=9
1,4,6=11
2,4,6=12

So, out of 4 outcomes

3 are odd and 1 is even.

In question given two pyramids are thrown.
So, to make some of their faces as even

Condition 1: some of both individual faces of each pyramid is odd

3/4 * 3/4
=9/16

Condition 2: some of both individual faces of pyramid is even
1/4 + 1/4
=1/16

Total such conditions = 9/16 + 1/16
= 10/16
= 5/8

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himanshu  (8 years ago)

total sum = 4*4=16
favorable case odd+odd = even
1*1=1;
and
even +even = even
3*3=9
so total = 10

so probability = 10/16=5/8
so b ans

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sangam jain  (8 years ago)

odd + odd =1/4*1/4
even + even =3/4*3/4
add both
we get answer=5/8

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NAVEEN KUMAR  (8 years ago)

pyramids have 5 faces but in q.. given only 4 faces(1,2,4,6)

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sanjeev kumar  (8 years ago)

Ans:a)5/8
total favourable events=10
total possible case=4*4=16
P=10/16=5/8

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rashmi saha  (8 years ago)

a-5/8 is d ri8 ans.

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N Murali Krishna   (8 years ago)

its option b

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himanshu  (8 years ago)

5/8 is ryt answer

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Bushra  (8 years ago)

i hav mrkd as 5/8 bt didnt get any mrks fr dt...

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Sourabh Prasad  (8 years ago)

@ Neha
This question is asked on which date?

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Bushra  (8 years ago)

askd on 12 nav 2015

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