MBA Exam

7 diff object must be divided among 3 people. In how many ways this can be done if at least one of them gets exactly 1 object ?

1) 2484
2) 1218
3) 2424
4) 729

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MBA Other Question
two barrel contains 108 L and 90 L petrol both having the diffrent price how many liter of barrel one be mix with barrel two and vice vera so that price of both barrel be equalapporch

A bartender stole champagne from a bottle that contained 50% of spirit and the he replaced what he had stolen with champagne having 20% spirit. The bottle then contained only 25% spirit. How much of the bottle did he steal? P.S. plz provide explanation!

1) 80%
2) 88.88%
3) 83.33
4) 85.71