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ATQ, Let the speed of the stream be 10x km/hr. So, speed of the boat in still water = 1.5×10x=15x km/hr ATQ, Speed of stream = 10x = 10.8 km/hr Now, Reduced speed of boat in still water = 15x × 0.8 = 12 km/hr Therefore, required distance = (12−10.8)×5 = 6 km
If x3 + y3 = 9 and x + y=3 then the value of x4 + y4 is:
If x = 555, y = 554, z = 556, then the value of x2 + y2 + z2 - xy-yz-zx?
Calculate the difference between (7.225) 2 - (2.275) 2
If (x24 + 1)/x12 = 7, then the value of (x72 + 1)/x36 is
If (p/q) = (7/8) and (q/r) = (3/11), then the find the value of {(r – p)/(p + q)}.
If a + b + c = 6, a³ + b³ + c³-3abc = 342, then what is the value of ab + bc + ca
If x = 21, then the value of x5 - 22x4 + 22x3 - 22x2 + 22x - 1 is