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1. Ten persons entered the lift cabin on 2nd floor of a 20 storey building. If we know two of the persons live on same floor, the probability of maximum number of stops of lift is (given that lift and its passengers have to go upwards only):

Quantitative Aptitude Test

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every nook and cranny
every small hiding place where you can put something
I looked in every nook and cranny of my apartment but I could not find my house keys.
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