Latest Wipro Aptitude Question SOLUTION: A and B throw a dice. The probabilty that A's throw is not greater than B's is (a) 5/12 (b) 7/12 (c) 11/12 (d) 5/36

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(#M40011766) WIPRO Numerical Ability question probability Keep an EYE

A and B throw a dice. The probabilty that A's throw is not greater than B's is
(a) 5/12
(b) 7/12
(c) 11/12
(d) 5/36

Asked In Wipro Harshini Tata (11 years ago)

Unsolved Read Solution (4)

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Read Solution (4) :

Sri Harsha  (11 years ago)

possibilities are
(1,1),(1,2),(1,3),(1,4),(1,5),(1,6)
(2,1),(2,2),(2,3),(2,4),(2,5),(2,6)
(3,1),(3,2),(3,3),(3,4),(3,5),(3,6)
(4,1),(4,2),(4,3),(4,4),(4,5),(4,6)
(5,1),(5,2),(5,3),(5,4),(5,5),(5,6)
(6,1),(6,2),(6,3),(6,4),(6,5),(6,6)
favourables=
{(1,1),(1,2),(1,3),(1,4),(1,5),(1,6),
(2,2),(2,3),(2,4),(2,5),(2,6),
(3,3),(3,4),(3,5),(3,6),
(4,4),(4,5),(4,6),
(5,5),(5,6),
(6,6)}
No.=6+5+4+3+2+1=21
Probability=21/36

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vikas rathore  (11 years ago)

ans is b i.e 7/12
if b's outcome is 6, a's outcome can be 6,5,4,3,2,1.total=6
similarly if b's outcome is 5,a's outcome can be 5,4,3,2,1=5
so a's outcome which is lower then b is 6+5+4+3+2+1=21
and total outcome is 36 so our probability is 21/36 or 7/12

Is this solution Helpfull? Yes (9) | No   

vivek kumar  (11 years ago)

require set ={(1,1),(1,2),(1,3),(1,4),(1,5),(1,6),(2,2),(2,3),(2,4),(2,5),(2,6),(3,3),(3,4),(3,5),(3,6),(4,4),(4,5),(4,6),(5,5),(5,6),(6,6)}=21
so,p(A!>B)=21/36=7/12

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hemalakshmi  (11 years ago)

no of out comes when we throw 2 dice is 36
and the required out comes are 21
so p(A!>B)=21/36=7/12

Is this solution Helpfull? Yes (1) | No   

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