Simplification (Railway Maths) (401 to 450)Total Questions: 5021. Simplify the equation : [RRB NTPC 17/01/2021 (Evening)](a) 5 (b) 7 (c) 6(d) 12Correct Answer: (c) 6Solution:22. Write the ratios 5 : 3, 7 : 5, 6 : 4 in descending order. [RRB NTPC 18/01/2021 (Morning)](a)(b)(c)(d)Correct Answer: (a)Solution:23. If 3𝑥/2𝑦 = 48/72 then 𝑥/𝑦 = in its lowest term is : [RRB NTPC 18/01/2021 (Morning)](a) 4/9(b) 5/9(c) 3/9(d) 2/9Correct Answer: (a) 4/9Solution:24. The value of (32/5) × 92 + (3/5 ) × is [RRB NTPC 18/01/2021 (Evening)](a) 401 (b) 590(c) 812 (d) 502Correct Answer: (b) 590Solution:25. What is the value of the following expression ? [RRB NTPC 18/01/2021 (Evening)](a) 1 (b) 9(c) 1/2(d) 0Correct Answer: (b) 9Solution:26. What is the value of the following expression ? [RRB NTPC 18/01/2021 (Evening)](a) 0 (b) 7.0 (c) 3.5(d) 2.5Correct Answer: (c) 3.5Solution:27. Which of the following options is equivalent to [RRB NTPC 18/01/2021 (Evening)](a) (x² + y² - xy) (b) (x² + y² - xy)(x + 2)²(c) (x + 2)² (d) (x² + y² + xy)(x + 2)²Correct Answer: (d) (x² + y² + xy)(x + 2)²Solution:28. Simplify the equations? [RRB NTPC 19/01/2021 (Morning)](a) 3 (b) 2 (c) 1 (d) 0Correct Answer: (d) 0Solution:29. If √15 = 3.88, then √(5/3) = ? [RRB NTPC 19/01/2021 (Morning)](a) 4.293 (b) 2.293 (c) 3.293 (d) 1.293Correct Answer: (d) 1.293Solution:30. Find the value of √2025 [RRB NTPC 19/01/2021 (Morning)](a) 25 (b) 45(c) 55 (d) 65Correct Answer: (b) 45Solution:Submit Quiz« Previous12345Next »
