If a, b and c are constants, a>b>c, and x3-x=(x-a)(x-b)(x-c) for all numbers x, what is the value of b?

The persons, X & Y, are standing 50 yards apart on a North-South axis. X walks 65 yards to west and Y walks 55...

If 3/x=2 and y/4=3, then 3+y/x+4=?

A ferry can travel twice as fast when empty as when it is full. It travels 20 mile with full load, spends 1 ho...

A man left Tk. 5000 to his three sons X, Y and Z. For every Taka X received, Y received Tk. 1.5 and Z received...

Six persons A, B, C, D, E, and F are standing in a circle. B is between F and C; A between E and D. F is in th...

Which number will complete the series 1,3,7,15,31,63------?