Question
Speed of a boat in still water is three times the speed
of the boat in upstream. If the boat takes 44 minutes to cover 22 km in downstream, then find the speed of the boat in still water.Solution
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; (22/44) × 60 = 30 So, 5x = 30 Or, x = 6 So, speed of the boat in still water = 3 × 6 = 18 km/h
Early maturing maize composite suitable for rainfed conditionsÂ
Crops cultivated to catch the forthcoming season when main crop has failed are called ___
The daughter cell produced by meiosis are different from mother cess in?
Sickle shaped horn is the characteristic feature of which of the following buffalo breed?
Insects with separate male and female individuals are referred to as:
When fruit develops from the mere stimulus of the pollination, but without fertilization it is known as_____
Which of the following if known as African rice?
Which of the following is a hybrid of basmati quality rice?
Among the following is an example of an amide fertilizer?
Panchayati Raj was started on the recommendation of ……………. Committee
