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A train takes 25 seconds more to cross a 750 metres long platform than it does to cross a 350 metres long bridge. If the time tak...
A carriage travelling in fog passed along a man who was walking @ 6 km/hr in the same direction. He could see the carriage for 8 minutes and it was visi...
if a2 + b2 + c2 = 2(3a -5b -6c)-70 , then a-b-c = ?
if 2x +3y =7 and 2x+2 -3y+2 =7, then find the value of x and y.
If a + b + c = 6, a² + b² + c² = 14 and ab + bc+ ca = 11, then what is the value of a³ + b³ +c³ –3abc?
If x = 6 + 2√5, then the value of √x - (1/√x)?
What is the square root of the following?
(x² –12x+36) (x² + 8x + 16)
