Question
A train, running at the speed of 72 km/h, is 300 metres
long. How much time (in seconds) will it take to pass over a bridge that is 600 metres long?Solution
ATQ;
Speed of train = 72 km/h = 72 × (5/18) = 20 m/s
Required time = (300 + 600) ÷ 20 = 900 ÷ 20 = 45 seconds
Solve the quadratic equations and determine the relation between x and y:
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Equation 2: 107y² - 504y + 397 = 0
Solve the quadratic equations and determine the relation between x and y:
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Equation 2: y² - 36y + 320 = 0
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I. x
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I. 2x² - 15x + 27 = 0
II. 2y² - 13y + 20 = 0
If x^2 - 7x + k = 0 has roots that are equal, what is the value of k?
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Equation 2: y² - 29y + 210 = 0
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II.72y² - 47y - 144 = 0
I. 20y² - 13y + 2 = 0
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