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ATQ, Downstream speed of the boat = 360 ÷ 15 = 24 km/h And, upstream speed of the boat = 288 ÷ 18 = 16 km/h Let the speed of the stream be 'p' km/h ATQ; 24 - 2p = 16 Or, 2p = 8 So, p = 4 So, speed of the stream = 4 km/h
How many values of x and y satisfy the equation 2x + 4y = 8 & 3x + 6y = 10.
Solve the quadratic equations and determine the relation between x and y:
Equation 1: 19x² - 88x + 100 = 0
Equation 2: 17y² - 79y + 9...
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 29x + 210 = 0
Equation 2: y² - 27y + 182 = 0
I. x2 – 7x + 12 = 0
II. y2 – 7y + 10 = 0
I. 5x² - 28x + 39 = 0
II. 2y² - 13y + 20 = 0
I. 2x2 – 5x - 12 = 0
II. y2 – 11y + 30 = 0
If the roots of the quadratic equation 5x² + 4x + 6 = 0 are α and β, then what is the value of [(1/α) + (1/β)]?
...What are the coordinates of the point which divides the line joining (-1, 7) and (4, 3) in the ratio 2:3?
Quantity I: The cash price of a notebook is Rs. 100 but is can also be purchased on 11 monthly equal instalments of Rs. 10 each. Find rate of S.I.?
...I. 5x2 – 18x + 16 = 0
II. 3y2 – 35y - 52 = 0
