Question
The average age of 12 students is 15 years. If the age
of the teacher is also included, the average increases by 1 year. Find the teacher's age.Solution
ATQ, Total age of 12 students = 12 x 15 = 180 Now 13 persons have average age 16 Total age = 13 x 16 = 208 Teacher's age = 208 - 180 = 28 years
In the question, two equations I and II are given. You have to solve both the equations to establish the correct relation between 'p' and 'q' and choose...
I. 8x² + 2x – 3 = 0
II. 6y² + 11y + 4 = 0
In each of these questions, two equations (I) and (II) are given.You have to solve both the equations and give answer Â
I. x² - 8x + 15 = 0 ...
I:Â x2Â - 33x + 242 = 0
II:Â y2Â - 4y - 77 = 0
I. x2 + (9x/2) + (7/2) = - (3/2)
II. y2 + 16y + 63 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 34x + 285 = 0
Equation 2: y² - 26y + 165 = 0
I. 2 x² - 15 + 18 = 0
II. x²- 3 + 2 = 0
...Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 54x + 704 = 0
Equation 2: y² - 44y + 448 = 0
I. 14p² + 9p - 8 = 0
II. 4q² - 19q + 12 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: 29x² - 137x + 108 = 0
Equation 2: 31y² - 146y + ...
