Latest Infosys Aptitude Question SOLUTION: What is the probability of a/b will be an integer when a=2x3y and b=2l3m and all of x, y, I, m are positive integers? a. 1/6 b. 2/3 c. 1/2 d. 1/4 e. 3/4

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What is the probability of a/b will be an integer when a=2x3y and b=2l3m and all of x, y, I, m are positive integers?

a. 1/6
b. 2/3
c. 1/2
d. 1/4
e. 3/4

Asked In Infosys mousumi mukherjee (9 years ago)

Unsolved Read Solution (7)

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Read Solution (7) :

Upendra G  (9 years ago)

d.1/4
There r 4 numbers to be filled i.e, x,y,l,m
out of which only one condition satisfies to get a/b as integer

Is this solution Helpfull? Yes (13) | No (8)  

subrata  (9 years ago)

a.1/6
four no should be filled (1,2,3,4)
possible ways (1.2/3.4,1.3/2.4,1.4/2.3,2.3/1.4,2.4/1.3,3.4/1.2)
3.4/1.2 is only integer which satisfies the condition.

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Ashish Dwivedi  (9 years ago)

Condition of integer to be satisfied by x=l and y=m.
No.s of ways =10*10=100
x and y are integers so no of ways= 10*10=100
l and m are integers so no of ways =10*10=100
So, x, y, l, m are integers no of ways=100*100=10000
probability =100/10000=1/100
Ans. None of these

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amulya  (8 years ago)

please give correct answer and solution

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HIMANSHU KUMAR  (8 years ago)

1/2 .. 100% sure..... don't say anything... by DL method........

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Aazam shaik  (5 years ago)

Option c
Since distance between new and old numbers are same.

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ramesh raj  (9 years ago)

ans 2/3

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