Simplification (Railway Maths) (401 to 450)

Total Questions: 50

11. If a : b = then the value of √7 : √3 (3a + 2b) : (3a - 2b) is equal to: [ RRB NTPC 16/01/2021 (Evening) ]

Correct Answer: (b)
Solution:

12. The value of 8 + (½ + ¼) × 16 is [ RRB NTPC 16/01/2021 (Evening) ]

Correct Answer: (c) 20
Solution:

13. If √45 + √125 = 17.88 then what will be the value of √180 + √80 ? [ RRB NTPC 17/01/2021 (Morning) ]

Correct Answer: (b) 22.35
Solution:

14. Select the number that can replace the question mark (?) in the following equation. [ RRB NTPC 17/01/2021 (Morning) ]

Correct Answer: (d)
Solution:

15. The value of 987 × 999 is.. [ RRB NTPC 17/01/2021 (Morning) ]

Correct Answer: (a) 986013
Solution:

16. If (1 + 2 + x) - (0.12 - 0.42 + 0.94) = 4, then what will be the value of x [ RRB NTPC 17/01/2021 (Morning) ]

Correct Answer: (a) 1.64
Solution:

17. Select the option that will replace the question mark (?) in the given equation. [ RRB NTPC 17/01/2021 (Evening) ]

Correct Answer: (b)
Solution:

18. Simplify [ RRB NTPC 17/01/2021 (Evening) ]

Correct Answer: (b)
Solution:

19. Solve the following : [ RRB NTPC 17/01/2021 (Evening) ]

11 + 11 ÷ 11 × 11 - 11 = ?

Correct Answer: (d) 122
Solution:

20. Solve the following [ RRB NTPC 17/01/2021 (Evening) ]

Correct Answer: (c) 5
Solution: