Question
Which among the following countries ranks first in
terms of per capita emission of carbon dioxide?Solution
Qatar with per capita emissions of 10.94 metric tonnes ranks first, followed by Trinidad and Tobago (10.30 metric tonnes) and Kuwait (9.34 metric tonnes).
A boat takes 24 hours to cover 'q' km in still water. While traveling downstream, it takes 16 hours to cover (q - 80) km. If the speed of the boat in st...
The speed of a boat in still water is 6 km/hr more than that of the current. The time taken by the boat to cover 925 km downstream is 18.5 hours. Find t...
A boat can cover 160 km in downstream in 16 hours and 144 km in upstream in 18 hours. Find the speed of boat in still water
Time taken by a boat to cover 253 km upstream is 49.99 % more than the time taken by the boat to cover 340 km downstream. Total time taken in covering b...
Determine the speed of a Ship in calm water, given that the Ship's speed downstream is 20% greater than its speed in still water. If the Ship can cover ...
A boat can row downstream at 24 km and upstream 16 km in 8 hours. Then what is the velocity of the current ?
Speed of a boat in still water to speed of boat in upstream is 7:4. If the boat can travel 450 km in downstream in 5 hours, then find the time taken by ...
The downstream speed of a boat is 25% more than its upstream speed. The boat takes 3.2 hours to travel 57.6 km upstream.
W...
The ratio of the speed of a boat in still water to its speed in downstream is 6:8. If the difference between the time taken by the boat to travel 288 km...
Two boats A and B start towards each other from two places, 600 km apart. Speed of the boat A and B in still water are 23 km/h and 17 km/h respectively....
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