A boat goes 6km an hour in still water, it takes thrice as much time to go the same distance against the current in comparison to the direction of the current. The speed of the current is (km/h)
Let the speed of the boat in still water =B and speed of the stream =S B=6/1=6km/h B+S B-S 1    3 (B+S) ×1=(B-S) ×3 B+S=3B-3S 2B=4S S= (2×6)/4=3km/h
If x = 8.15, y = 9.06 and z = –17.21, then the value of x³ + y³ + z³ – 3xyz is:
If (54√2 x³ +24√3 y³)÷(√18 x + √12 y) = Ax² + By² + Cxy, then what is the value of A² - (B²...
If {1/(y + 1) + 1/(y + 5)} = {1/(y + 2) + 1/(y + 4)}. Find the value of y
A boy who is standing in the middle of a field watches a bird flying in north direction at the angle of elevation of 60o and after 3 minutes ...
The value of:
 Â...
If x + y + z = 7, x² + y² + z² = 85 and x³ + y³+ z³ = 842, then the value of√3 xyz is:
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Out of total number of people in an office, 40% are males. Ratio of number of married to that of unmarried people in the office is 3:2 while ratio of nu...
