Question
The speed of a boat in still water is 20 km/h, and the
speed of the river flow is 4 km/hr. If the total time taken for the boat to go from point 'X' to point 'Y' and return is 12 hours, find the distance between point 'X' and point 'Y'.Solution
ATQ, Upstream speed = 20 - 4 = 16 km/h Downstream speed = 20 + 4 = 24 km/h  Let the distance between points 'X' and 'Y' be 'd' km. Time equation: {(d/24)+(d/16)} = 12 Solving for 'd': 2d+3d=12×48 5d = 576 d=115.2 km Distance = 'd' = 115.2 km
Which of the following test is used to test the goodness of fit?
The process of separating lint from seed in cotton is called ___
In rust cycle, wheat is infected by which of the following spores?
Which one is not related with 4-H club?
Japanese style of floral arrangement is termed as
Objectionable weed in wheat field is _____
The law that determines the best uses of limited resources among alternative uses is known as:
The most effective insecticide to control termite is ______
The concentration of CO2 in the soil atmosphere is …………………………………..
...Cut or excised leaves remain green for long if induced to root or dipped in_____
Relevant for Exams:
