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Let the speed of boat in still water =B and speed of stream =S then Speed of boat in downstream=B+S and distance =4km So now -time =4/B+S Speed of boat upstream =B-S and Distance =3km So, time = 3/B-S ATQ-
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 a = 55, then what is the value of
If sin 28° = 15/17 , then tan 62° = ?
If 9x2 + 16y2 = 24xy, then find the ratio of ‘x’ and ‘y’, respectively.
If x² + y² + z² = xy + yz + zy (x≠0), then the value of (5x+3y-4z)/2x is
If a + b + c = 5, a³ + b³ + c³ = 95 and abc =15, then find the value of a² + b² + c² – ab –bc – ca
If 4x + 1/3x = 12 then find the value of 9x2 +1/16x2.