Simplification (Railway Maths) (351 to 400)

Total Questions: 50

11. The value of √72 × 18 + √0.04 + √0.64 is: [RRB NTPC 29/12/2020 (Evening)]

Correct Answer: (a) 37
Solution:

12. Simplify the equation? [RRB NTPC 29/12/2020 (Evening) ]

Correct Answer: (b) 7/2
Solution:

13. The value of 1/0.24 of 1.44 is [RRB NTPC 29/12/2020 (Evening)]

Correct Answer: (c) 6
Solution:

The value of 1/0.24 of 1.44
= 144/24 = 6

14. Solve the following. [RRB NTPC 30/12/2020 (Morning)]

6202.5 + 620.25 + 62.025 + 6.2025 + 0.62025 = ?

Correct Answer: (b) 6891.59775
Solution:

6202.5 + 620.25 + 62.025 + 6.2025 + 0.62025
= 6202.50000 + 620.25000 + 62.02500 + 6.20250 + 0.62025 = 6891.59775

15. Simplify the equation? [RRB NTPC 30/12/2020 (Morning) ]

Correct Answer: (a) 156/369
Solution:

16. Value of the square root of is 36.1 / 102.4 is: [RRB NTPC 30/12/2020 (Morning) ]

Correct Answer: (c) 19/32
Solution:

17. Find the answer of given equation? [RRB NTPC 30/12/2020 (Evening) ]

Correct Answer: (c) 3
Solution:

18. If √3ⁿ = 729, then the value of n is equal to? [RRB NTPC 04/01/2021 (Morning)]

Correct Answer: (d) 12
Solution:

19. A class has 48 students. On a specific day, only 3/8 of the students were present. The number of absentees on the same day would be [RRB NTPC 04/01/2021 (Morning)]

Correct Answer: (d) 30
Solution:

20. The value of (0.27)² − (0.13)² / 0.27 + 0.13 is? [RRB NTPC 04/01/2021 (Morning)]

Correct Answer: (d) 0.14
Solution: