MBA Exam

If O is any point on the circumference of the circle I and circle II is drawn taking O as its center such that its circumference bisects the circumference of I.If the area of the circle I is (4* pie) cm^2, what is the area of circle I not common to circle II..(options in cm^2)

1) 2.5 pie
2) 4
3) 2
4) 5 *pie / 3

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MBA Other Question

the perpendicular distances of the three sides of an equilatreal triangle from a point which lies inside the triangle are 6 , 9, 12 cm..find perimeter of triangle.......plz explain tooo

1) 42 root 2
2) 45 root 3
3) 52 root 2
4) 54 root 3
raju can do a piece of work in 10 days, vicky in 12 days,tinku in 15 days. they all start work togather but raju leaves after 2 days, vicky leaves 3 days before the work is completed , in how many days work is completed?

1) 7
2) 5
3) 9
4) 6