MBA Exam

|x| + |y| = 10No. of soln?Plz eplain!!!

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MBA Other Question

From the top of a cliff, 200m high, the angle of depression of the top and bottom of a tower are observed to be 30 and 60 degree, find the height of the tower.

1) 200/3
2) 200/root3
3) 400/3
4) 400/root3
A car started from city A towards city B and travelled a certain distance at its usual speed. It then developed an engine problem, because of which its speed decreased by 10% for the remaining distance and it arrived at its destination one hour later than expected. Had the engine problem developed after it had travelled 20% more distance, it would have arrived at its destination ten minutes sooner than it actually did. How long did the car travel before the engine developed the problem?Solution plzzz......

1) 6 hours
2) 7.5 hours
3) 4.5 hours
4) 9 hours