Question
Which of the following is not a merit of Mendeleev’s
Periodic Table?ÂSolution
The correct answer is C
The downstream speed of a boat is 22 km/hr, and its upstream speed is 14 km/hr. Determine the time required for the boat to trave...
The speed of a boat while moving upstream is 20% less than its speed in still water. The boat covers a distance of 348 km downstream in 7 hours and 15 m...
A boat can cover 150 km in downstream in 15 hours and 130 km in upstream in 13 hours. Find the distance travelled by the boat in still water in 5 hours.
Ratio of speed of boat in downstream and speed of stream is 7:4, if speed of current is 8 km/hr, then find distance travelled (in km) upstream in 7 hours.
A boatman takes 9 hours to cover 64 km downstream and 60 km upstream. If the ratio of his speed downstream to his speed upstream is 4:3, what is the spe...
Two boats A and B start towards each other from two places, 312 km apart. Speed of the boat A and B in still water are 14 km/h and 10 km/h respectively....
A boat can cover a distance of 210 km downstream with the current in 5 hours. It takes an additional 2.5 hours to return the same...
A ship requires 9 hours to travel a distance of 216 km downstream and 210 km upstream. If the ratio of the ship's speed in calm waters to the speed of t...
Speed of a boat in still water is 4 times more than the speed of stream. If boat covers 108 km in downstream in 9 hours, then find the time taken by the...
Speed of a boat in still water is 4 times more than the speed of stream. If boat covers 120 km in downstream in 8 hours, then find the time taken by the...
