I. 96x² + 52x - 63 = 0 96x² + 108x - 56x - 63 = 0 12x (8x + 9) - 7(8x + 9) = 0 (12x - 7) (8x + 9) = 0 x = 7/12 , - 9/8 II. 77y² + 155y + 72 = 0 77y² + 56y + 99y + 72 = 0 7y(11y + 8) + 9(11y + 8) (7y + 9) (11y + 8)= 0 y = - 9/7 , - 8/11 Hence no relationship can be established.
The average of five consecutive odd numbers is 77. What is the average of the first three numbers among them?
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The average weight of P and his three friends is 55 kg. If P is 4 kg more than the average weight of his three friends, what is P's weight (in kg)?
Each question contains a statement followed by Quantity I and II. Read the information clearly and answer your questions accordingly.
Qu...
Average of 22 numbers is 58. If the average of the first eight and last seven numbers is 65.5 and 48.5 respectively, and if the eleventh number is 35% m...
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In an exam of 100 marks, the average marks of a class of 38 students are 72. If the top 3 scorers of the class leave, the average score falls “dow...
