Speed of a boat in still water is three times the speed of the boat in upstream. If the boat takes 20 minutes to cover 20 km in downstream, then find the speed of the boat in still water.
Let speed of the boat in still water be ‘3x’ km/h. Speed of the boat in upstream = 3x ÷ 3 = ‘x’ km/h Speed of the stream = 3x – x = ‘2x’ km/h Speed of the boat in downstream = 3x + 2x = ‘5x’ km/h ATQ; (20/20) × 60 = 5x So, 5x = 60 Or, x = 12 So, speed of the boat in still water = 3 × 12 = 36 km/h
The integrated pest management practices used in good warehouse keeping
SRI system of Rice cultivation was introduced from which country?
What sugarcane pest leads to leaves turning yellow, being covered with black sooty mold, and the drying up of top leaves with lateral bud germination?
Which among the following is an example of Pseudocarpic fruit?
Objectionable weed for seed production of wheat is:
KVK was recommended by which committee _____
Where do grasshoppers lay eggs?
The category of weeds is characterized by a lifespan of more than two years and can propagate through various means such as underground stems,...
India lies between ____ latitude and _____longitude.
Triazines and triazinones inhibit ______