Question
What are the average marks obtained by all five students
in Mathematics? The below table gives the marks out of 100 obtained by five students in four different subjects in an examination. Study the table and answer the question that follows.Solution
Marks in Mathematics:
Suresh – 70
Ramesh – 85
Ankith – 90
Ranjith – 95
Aryan – 75
Total = 70 + 85 + 90 + 95 + 75 = 415
Average = 415 ÷ 5 = 83
I. 2x2 + 3x - 9 = 0
II. 3y2 - y - 10 = 0
I. 3x2 - 14x + 15 = 0
II. 15y2 - 34 y + 15 = 0
I. 40x² + 81x + 35 = 0
II. 63y² + 103y + 42 = 0
I. p² - 10p +21 = 0
II. q² + q -12 = 0
I. 5x + y = 37
II. 4y+ x = 15
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 34x + 288 = 0
Equation 2: y² - 29y + 210 = 0
Equation 1: x² - 90x + 2025 = 0
Equation 2: y² - 88y + 1936 = 0
I. x2 + 24x + 143 = 0
II. y2 + 12y + 35 = 0
I. x² - 33x + 270 = 0
II. y² - 41y + 414 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 21x + 110 = 0
Equation 2: y² - 23y + 132 = 0
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