MBA Exam

In a km race, if A gives B 40 m start, A wins by 19 seconds but if A gives B 30 seconds. start, B wins by 40 m. Find the time that each takes to run a km?

1) 150 seconds, 170 seconds
2) 125 seconds, 150 seconds
3) 120 seconds, 150 seconds
4) 125 seconds, 175 seconds

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MBA Other Question
In a geometric progression,which can be summed to infinity,each term is equal to seven times the sum of all the terms that follow.In the g.p formed by the cubes of the terms of the above g.p(assuming such a g.p exist),each term is equal to how many time the sum of all the terms that follow?

1) 343
2) 512
3) 511
4) 342
 If the sum of the first ‘2n’ natural numbers is 100 more than the sum of the first ‘n’ natural numbers, then find the sum of the first ‘3n’ natural numbers.

1) 231
2) 300
3) 378
4) 465
5) 410