Time taken by a boat to travel certain distance in upstream direction is twice the time taken by the boat to cover same distance in downstream direction. If the total time needed to cover 24km upstream and 24km downstream is 3 hours, then calculate the average of speed of boat in still water and speed of stream.
Let speed of boat in still water: u and speed of stream: v d/(u-v) = 2d/(u+v) => u = 3v 24/(u+v) + 24/(u-v) = 3 => v = 6km/hr Average of speed of still water and speed of stream = (u+v)/2 => 12
Which conjunction can be used for this sentence?
_____________ my car is very old, it still runs very well.
Select the most appropriate option to fill in the blank.
He has experienced __________ abuse.
The paper ____________ an urgent shake-up in the system for looking after the elderly.
The proposed tax structure on services ………… much ………. complex ………… we have ...
Patoonda is a small village situated …….. the rocky barren land on the right bank of river Kali Sindh, a major …… of Chambal...
Fill in the blank with the most appropriate word.
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Children need ___________ to make sense of their internal and external worlds.
It is difficult to ________ for the dizzying ________ in the value of cryptocurrencies.
In …….. days of commercialization of medical profession, the likes of him were rare ……….
The migrants, …… some women were spotted by a plane patrolling the seas ….. Italy as part of operation.
