Quant Boosters  Soumya Chakraborty  Set 2

Correct answer 100 mins

Q29) A train after reaching exactly halfway to a platform that is double its own length, takes 40 s to cross the platform completely. How long will the train take to completely cross a bridge that is exactly 5 times the length of the platform ?

Q30) The diagonals of a hexagon intersect at n distinct points inside the hexagon. What is the maximum value n can take ?

Number of diagonals of a hexagon 6c26 = 9
Eliminating the intersections at vertices = 9c2  6 * 3c2 = 18
3 more cases has to be discarded...
Connecting (1,3) and connecting (4,6) won't intersect
Similarly 2 more..
So 18  3 = 15 is the answer





