Question
The speed of a boat in still water is 40% less than its
speed while moving downstream. If the boat takes 8 hours to travel 160 km upstream, how long will it take to cover a distance of 320 km downstream?Solution
ATQ,
Let the downstream speed of the boat be ‘x’ km/h.
So, the speed of the boat in still water = 0.60x km/h
So, the speed of the stream = x – 0.60x = 0.40x km/h
Upstream speed of the boat = 0.60x – 0.40x = 160/8
0.20x = 20 km/h
x = 100 km/h
So, the time taken by the boat to cover 320 km downstream = 320/100 = 3.2 hours
Which vegetable is propagated through cuttings?
Which compound is responsible for imparting the red color to tomatoes and is also a powerful antioxidant beneficial to human health?
Where is the Central Tuber Crops Research Institute located?
What is the function of the pigment betalain found in beetroot, and how does it differ from anthocyanins?
Parasitic weed in sorghum crop is
Which vegetable crop has a tuberous hypocotyl and root portion forming the edible part, and is classified under family Brassicaceae?
Curd is the economical part of which of the following vegetable?
The highly pungent aroma in garlic is due to the presence of which sulfur-containing volatile compound?
For one hectare of garlic cultivation, approximately how much planting material is required to ensure optimal bulb development and plant population?
Which vegetable crop has natural resistance to both drought and soil salinity, and is therefore suitable for marginal lands?
Relevant for Exams:
