MBA Exam

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

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MBA Other Question

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
In class X final examination, 70 students got distinction in science, 83 in Math’s, 51 in social studies and 35 in English. Three students got distinction in all the subjects. 5 got distinction in science, social studies and maths only. Three got distinction in social studies, Maths and English only. Two got distinction in science, social studies and English only, 15 got distinction in science and social studies. If the distinction in observed only in these mentioned pairs and triplets, then find the number of students getting distinction in at least one of the given subjects?

1) null
2) null
3) null
4) 195
5) 160
6) 200
7) 140