Simplification (Railway Maths) (451 to 500)

Total Questions: 50

1. Express following in the simplest form: [RRB NTPC 25/01/2021 (Evening)]

1/5 ÷ (5/3 × 3/25)

Correct Answer: (b) 1 
Solution:

2. Solve the following: [RRB NTPC 25/01/2021 (Evening)]

Correct Answer: (b)
Solution:

3. Solve the following [RRB NTPC 27/01/2021 (Morning)]

64.916 + 1.456 - 25.326 = ?

Correct Answer: (c) 41.046
Solution:

64.916 + 1.456 - 25.326 = 41.046

4. Solve the following: [RRB NTPC 27/01/2021 (Morning)]

Correct Answer: (b) 57
Solution:

5. Simplify the following. [RRB NTPC 27/01/2021 (Morning)]

Correct Answer: (c) 9
Solution:

6. Simplify the expression [RRB NTPC 27/01/2021 (Evening)]

(√81 + √0.81 + √0.0081) √10000.

Correct Answer: (c) 999
Solution:

7. Find the value of m in [RRB NTPC 27/01/2021 (Evening)]

Correct Answer: (b) 3
Solution:

8. Simplify the given expression [RRB NTPC 28/01/2021 (Morning)]

Correct Answer: (c) 26/25
Solution:

9. Using BODMAS, simplify the following. [RRB NTPC 28/01/2021 (Morning)]

Correct Answer: (a) 98000 
Solution:

10. Simplify the following. [RRB NTPC 28/01/2021 (Morning)]

5 × 0.5 × 0.05 × 0.005 × 500

Correct Answer: (b) 0.3125
Solution:

5 × 0.5 × 0.05 × 0.005 × 500
= 2.5 × 0.00025 × 500
= 0.3125