MBA Exam

The sum of digits in this multiplication will be:N=202200022000000022000000000000000220000000.......2(31 zeroes) The sum of digits in this multiplication will be:

1) 144
2) Cannot be determined
3) 112
4) 160

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Trigonometry:the elevation of a tower at a station A due to north of it is 45 degree and at a station B due west of A is 30 degree .if AB=40m .find height of tower.Pls explain your solution .

1) 26.26m
2) 28.28m
3) 38.5m
4) none of these
If x6 + 5x3 + 8 = 0, then which among the following is true?

1) x + 2/x = 1
2) x + 2/x = -1
3) x - 2/x = 1
4) x - 2/x = -1