Quant Question Of The Day: 255
If Z is a set of 3 numbers, which are not co-prime to each other and none of them is multiple of other, then what is the minimum LCM of these 3 numbers
- 60
- 8
- 24
- 30
Solution for Quant Question of the day: 254
a/(a+b) = b/(a-b)
Let’s divide the entire equation by ‘b’ (let’s say a/b = k)
so k/(k+1) = 1/(k-1)
k(k-1) = (k+1)
k^2-k = k+1
k^2-2k = 1
k^2-2k+1 = 2
(k-1)^2 = 2
k-1 = (2)^0.5
k =1.41+1 = 2.41
hence a/b = 2.41 , so ‘a’ is 241% of ‘b’
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