MBA Exam undefined

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

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MBA Other Question

What is the total number of ways in which 55 chocolates can be divided among 5 boys such that each boy gets an odd number of chocolates?

1) <sup>29</sup>C<sub>4</sub>
2) <sup>31</sup>C<sub>4</sub>
3) <sup>42</sup>C<sub>4</sub>
4) <sup>23</sup>C<sub>4</sub>
5) <sup>33</sup>C<sub>4</sub>
The sum of digits in this multiplication will be:N=202*20002*200000002*20000000000000002*20000000.......2(31 zeroes) The sum of digits in this multiplication will be:

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