MBA Exam

N persons stand on the circumference of a circle at distinct points. Each possible pair of persons, not standing next to each other, sings a two-minute song one pair after the other. If the total time taken for singing is 28 minutes, what is N?

1) 1. 5
2) 2. 7
3) 3. 9
4) 4. None of the above​

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MBA Other Question
10 straight lines, no two of which are parallel and no three of which pass through any common point, are drawn on a plane. The total number of regions (including finite and infinite regions) into which the plane would be divided by the lines is(a) 56(b) 255(c) 1024(d) Not unique

1) 56
2) 255
3) 1024
4) None of the above
 Easy oneOne man can do as much work in one day as a woman can do in 2 days. A child does one third the work in a day as a woman. If an estate-owner hires 39 pairs of hands, men, women and children in the ratio 6 : 5 : 2 and pays them in all Rs. 1113 at the end of the days work. What must the daily wages of a child be, if the wages are proportional to the amount ofwork done?(a) Rs.14(b) Rs.5(c) Rs.20(d) Rs.7

1) 1
2) 2
3) 3
4) 4