The sum of the squares of two consecutive even numbers is 340. Then the numbers are :
14, 12
14, 16
16, 18
22, 24
Solution of x2 - 2x - 15 = 0 is
x = -5 and x = 3
x = 5 and x = -3
x = -5 and x = -3
Five years ago, a woman’s age was the square of her son’s age. Ten years hence her age will be twice that of her son’s age. Then the age of the son five years ago
5
6
7
10
Solution of x2 + 6x -10 = 0 is
The root of 2x2 - 7x + 6 = 3 are
x = 1/2, 3
x = -1/2, 3
x = 1/2, -3
Length of a field is triple of its breadth and its area is 400m2, then corresponding quadratic equation is
3x - 400 =0
3x2 - 400 = 0
3x2 + 400 = 0
3x2 - 400 =0
Solution of 4 + 11/3x - 5x2 =0
x = 4/3 ior x = -3/5
x = -4/3 ior x = -3/5
x = -4/3 ior x = 3/5
x = 4/3 or x = 3/5
Solution of x2 - 6x = 27 is
x = -9 and 3
x = -9 and -3
x = 9 and -3
x = 9 and 3
A two digit number if such that the product of its digits 12. When 36 is added to this number the digits interchange their places. Then the numbers are :
26
62
34
43
Solution of x2 - 4x - 5 = 0 is
x = -5 or x =1
x = 5 or x = 1
x = 5 or x = -1
x = -5 or x = -1
