Quantitative Aptitude Quiz 2015 – Set 3 – Quadratic Equations

Exampundit.in

5 years ago

Hello and welcome to ExamPundit. Here is a set of Quadratic Equations for Bank Exams.

In the following questions, three equations numbered I, II
and III are given. You have to solve all the equations either together or
separately, or two together and one separately, or by any other method and give
answer:

a) if x < y = z

b) if x £
y < z

c) if x < y > z

d) if x = y > z

e) if x = y = z or if none of the above relationships can be
established.

1. I. 7x + 6y +
4z = 122

II. 4x + 5y + 3z
= 88

III. 9x + 2y + z
= 78

Solutions –

2. I. 7x + 6y =
110

II. 4x + 3y = 59

III. x + z = 15

Solutions –

3. I. x = √[(36)
½ × (1296) ¼ ]

II. 2y + 3z = 33

III. 6y + 5z = 71

Solutions –

4. I. 8x + 7y =
135

II. 5x + 6y = 99

III. 9y + 8z =
121

Solutions –

5. I. (x + y)3
= 1331

II. x – y + z = 0

III. xy = 28

Solutions –

Regards

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