MBA Exam

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

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MBA Other Question
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
 Find the roots of (x-1)(x-3)(x-4)(x-6) + 8 = 0

1) 0.5*(7 + rt(17))
2) 2
3) 0.5*(7 - rt(17))
4) 0.5*(3 + rt(13))
5) 0.5*(3 - rt(13))