MBA Exam

A b c cn do sm wrk in 36dys..a n b togthr do twice as much wrk as c alone,and a n c togthr cn do thrce as much wrk as b alne..find d time takn by c to do whle wrk..96,108,120,72

1) 96
2) 108
3) 120
4) 72

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MBA Other Question
The houses of row are numbered consecutively from 1 to 49. Show that there is a value of x such that the sum of the numbers of the houses preceding the house numbered x is equal to the sum of the numbers of the houses following it. Find the value of x ?

1) 22
2) 19
3) 28
4) 35
 if the sum of the sides of a triangle is 72. if two of the medians of this triangle are perpendicular, then find the sum of the squares of the lengths of these medians.

1) 24
2) 18
3) 27
4) CBD