Simplification (Railway Maths) (651 to 700)

Total Questions: 50

41. Simplify: [RRB JE 01/06/2019 (Evening)]

2 / (1 − √2)

Correct Answer: (c) −2(1 + √2)
Solution:

42. Find the greatest among these fractions. [RRB JE 01/06/2019 (Evening)]

5/6, 6/11, 2/3, 8/9, 6/7

Correct Answer: (c) 8/9
Solution:

5/6 = 0.833, 6/11 = 0.545, 2/3 = 0.666, 8/9 = 0.888, 6/7 = 0.857
So, 8/9 is greatest fraction

43. Find the value of [RRB JE 02/06/2019 (Morning)]

1 / (√2 + √3 − √5) + 1 / (√2 − √3 − √5)

Correct Answer: (c) 1/√2
Solution:

44. Simplify: [RRB JE 02/06/2019 (Morning) ]

(2/3) + (5/6) - (1/9) + (7/9)

Correct Answer: (c) 13/6
Solution:

45. Answer the following question? [RRB JE 02/06/2019 (Morning) ]

Correct Answer: (c)
Solution:

46. Simplify: [RRB JE 02/06/2019 (Afternoon)]

1035 ÷ [ 3/4 (71 + 65) − 15 3/4 ]

Correct Answer: (b) 12
Solution:

47. Which of the following is the greatest? [RRB JE 02/06/2019 (Afternoon)]

Correct Answer: (c) 34/35
Solution:

48. If 0.034 = x/10, find the value of 'x'. [RRB JE 02/06/2019 (Afternoon)]

Correct Answer: (c) 0.34
Solution:

0.034 = x / 10 ⇒ x = 0.34

49. Find the smallest fraction. [RRB JE 02/06/2019 (Evening) ]

Correct Answer: (b) 15/19
Solution:

7/8 = 0.875, 15/19 = 0.789, 17/21 = 0.809, 13/16 = 0.812
Smallest fraction = 15/19

50. Evaluate : [RRB JE 02/06/2019 (Evening) ]

Correct Answer: (c) 4/3
Solution: