Simplification (Railway Maths) (251 to 300)

Total Questions: 50

21. Simplify the question? [Group D 28/09/2022 (Evening) ]

Correct Answer: (c) 5
Solution:

22. 5/12 is the same as: [Group D 29/09/2022 (Morning)]

Correct Answer: (a)
Solution:

23. Simplify the question: [Group D 29/09/2022 (Morning) ]

Correct Answer: (d) 5
Solution:

24. Simplify the given expression. [Group D 29/09/2022 (Afternoon)]

3x(x − 9) − 9x² + 2x + 24 − x³

Correct Answer: (b) 24 − 25x − 6x² − x³
Solution:

25. Simplify the question? [Group D 29/09/2022 (Afternoon) ]

Correct Answer: (c)
Solution:

26. If √y ÷ √121 = 0.03, then find the value of y, giving your answer correct to 3 decimal places. [Group D 29/09/2022 (Afternoon)]

Correct Answer: (b) 0.109
Solution:

27. Simplify the given expression. [Group D 29/09/2022 (Evening)]

3x(x − 3) + 2(3x² − 4)

Correct Answer: (b) 9x² − 9x − 8
Solution:

28. Find the value of n, when 216²/ⁿ = 36. [Group D 30/09/2022 (Morning)]

Correct Answer: (c) 3
Solution:

29. Evaluate (−5/7)⁻⁶ × (−5/7)⁴? [Group D 30/09/2022 (Morning)]

Correct Answer: (a) 49/25
Solution:

30. Simplify the question? [Group D 30/09/2022 (Morning) ]

Correct Answer: (a) 2
Solution: