Question
According to the WMO, what concentration of CO ₂ was
recorded in 2023, representing 151% of pre-industrial levels?Solution
The World Meteorological Organization reported a CO ₂ concentration of 420 ppm in 2023, marking an increase driven by fossil fuel emissions and other factors.
Speed of a boat in downstream is 50% more than that in upstream. Total time to travel 48 km upstream and 36 km downstream is 6 hours. What is the speed ...
The speed of boat downstream and upstream is 30 km/hr and 20 km/hr respectively. Time taken to travel a distance of (a + 50) km downstream and (b + 25) ...
Speed of a boat in still water to speed of boat in upstream is 12: 11. If the boat can travel 260 km in downstream in 4 hours, then find the time taken ...
A boat takes half time in moving a certain distance downstream than upstream. The ratio of the speed of the boat in still water and that of the current...
A boat goes 40 km in upstream in 5 hours and takes 3 hours to complete a distance of 18 km in downstream. Find the speed of boat in still water.
A man swims 3km/h against the stream and goes 1 km in 10 minutes along the stream, how much time will it take to cover 5 km in still water?
- Ronit takes a total of 24 hours to travel 128 km downstream and then the same 128 km distance upstream. Additionally, he takes 30 hours to cover 480 km dow...
Speed of a boat in still water is 18 km/h while the speed of the stream is ____ km/h. Total time taken by the boat to go 180 km upstream and 270 km down...
- A motorboat covers 96 km downstream in 4 hours. Coming back upstream over the same distance, it takes 8 hours longer than the downstream time. Find the spe...
Speed of a boat in still water is 15 km/h while the speed of the stream is ____ km/h. Total time taken by the boat to go 150 km upstream and 225 km down...
