Algebra (Railway Maths) (Part – IV)

Total Questions: 50

1. The value of (0 . 064) + (0 . 008) / 0.16 + 0.04 - 0.08 is: [Group D 14/09/2022 (Evening) ]

Correct Answer: (c) 0.6
Solution:

2. Write the expanded form of (3a + 4b + 5c)². [Group D 15/09/2022 (Morning) ]

Correct Answer: (b) 9a² + 16b² + 25c² + 24ab + 40bc + 30ac
Solution:

3. Find the answer of given question? [Group D 15/09/2022 (Morning) ]

Correct Answer: (d) 5
Solution:

4. The quadratic equation x² + 7x - 60 has : [Group D 15/09/2022 (Morning) ]

Correct Answer: (c) two real and unequal roots
Solution:

5. Find the answer of given question? [Group D 15/09/2022 (Afternoon) ]

Correct Answer: (d)
Solution:

6. The equation (x + 1)² - 2(x + 1) = 0 has: [Group D 15/09/2022 (Afternoon)]

Correct Answer: (b) two real roots
Solution:

7. The positive square root of (6 + 2√3)(6 - 2√3) is ________. [Group D 15/09/2022 (Evening)]

Correct Answer: (b) 2√6
Solution:

8. Evaluate 984² − 16². [Group D 15/09/2022 (Evening)]

Correct Answer: (d) 968000
Solution:

9. Which of the following describes the nature of the roots of the quadratic equation 3x² − 4x + 10 = 0? [Group D 15/09/2022 (Evening)]

Correct Answer: (a) No real roots
Solution:

10. If α, β are the roots of the quadratic equation x² − 11x + 18 = 0, then the value of α² + β² is: [Group D 16/09/2022 (Morning)]

Correct Answer: (b) 85
Solution: