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ATQ, Let the average height of a person in group 'J' = 'b' cm. Then, the average height of a person in group 'I' = (b - 18) cm. Total height of all people in group 'J' = 30 × b = '30b' cm. Total height of all people in group 'I' = 36 × (b - 18) = 36b - 648 cm. So, 36b - 648 = 30b. Or, 6b = 648. So, b = 648 / 6 = 108. Required average height = 108 cm.
I. x2 - 9x - 52 = 0
II. y2 - 16y + 63 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: 41x² - 191x + 150 = 0
Equation 2: 43y² - 191y +...
Between what values of x is the expression 19x - 2x2 - 35 positive?
In the question, two equations I and II are given. You have to solve both the equations to establish the correct relation between x and y and choose the...
If x² + 2x + 9 = (x – 2) (x – 3), then the resultant equation is:
In the question, two equations I and II are given. You have to solve both the equations to establish the correct relation between x and y and choose the...
I. x2 - 4x – 21 = 0
II. y2 + 12y + 20 = 0
l). 2p² + 12p + 18 = 0
ll). 3q² + 13q + 12 = 0
I. y/16 = 4/y
II. x3 = (2 ÷ 50) × (2500 ÷ 50) × 42 × (192 ÷ 12)
