Question
A train moving at a speed of ‘x’ km/h crosses a
signal post in 22 seconds and then passes a 300 metre long bridge in 40 seconds. Calculate the total distance it would cover in 10 hours.Solution
ATQ,
Let speed of train = y m/s So, length of train = 22 × y = 22y metres According to question: (22y + 300) = 40y Or, 18y = 300 Or, y = 16.67 m/s So, x = 16.67 × 18/5 = 60 km/h Desired distance = 60 × 10 = 600 km
Which of the following disease in banana is caused by virus?
What are located between the compound eyes which may be variable in number, but never exceed three in number? Function appears to aid the insect in dete...
Indian agriculture is generally described as being a:
The proportion of area under different crops at a point of time in a region is called:
Sorghum forage poisoning is caused by
Soil microorganisms are most active at which temperature range?
Marginal utility signifies
Which one of the following scientists coined the term allelopathy in 1937?
The National Demonstration Project launched in 1964 aimed to:
Skimmed milk contains how much % of fat content?
