MBA Exam

of 12 points on a plane, 5 points lie on the straight line and no other combination of 3 points lie on a straight line .Then by joining these points how many quadrilaterals can be formed. @gyrodceite approach please??

1) 495
2) 420
3) 490
4) 480

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MBA Other Question

Each of A,B and C need a certain unique time to do certain work. C needs 1 hour less than A to complete the work. Working together they require 30 minutes to complete 50% of the work. The work also gets completed if A and B start working together and A leaves after 1 hour and B works further 3 hours. How much work does C do per hour?

1) 16.66%
2) 66.66%
3) 50%
4) 33.33%
REM (2^100+2^200+2^300+.....................2^10000)/7 = ?

1) 0
2) 2
3) 6
4) 4