Simplification (Railway Maths) (501 to 550)

Total Questions: 50

31. By how much is 4/5th of 3500 more than 1/3rd of 6000? [RRB NTPC 02/03/2021 (Morning) ]

Correct Answer: (d) 800
Solution:

32. Find the answer of given equation? [RRB NTPC 02/03/2021 (Evening) ]

Correct Answer: (b)
Solution:

33. Find the answer of given equation? [RRB NTPC 03/03/2021 (Morning) ]

Correct Answer: (b)
Solution:

34. If 65 × 65 = 4225, then the value of 6.5 × 6.5 = ? [RRB NTPC 03/03/2021 (Morning) ]

Correct Answer: (a) 42.25
Solution:

65 × 65 = 4225
Then , 6.5 × 6.5 = 42.25

35. Find the answer of given question? [RRB NTPC 03/03/2021 (Morning) ]

Correct Answer: (a) 3110
Solution:

36. Simplify: [RRB NTPC 03/03/2021 (Evening)]

(320 ÷ 8 × 8 ÷ 4 × 1/2) / (180 × 5 ÷ 45 − 4)

Correct Answer: (c) 5/2
Solution:

37. Simplify: 9 + (45 ÷ 9) − 8 × (−4) [RRB NTPC 03/03/2021 (Evening)]

Correct Answer: (a) 46
Solution:

9 + (45 ÷ 9) - 8 × (-4) = 9 + 5 + 32 = 46

38. The value of {3/5 × [3 + {3 + (11 + 5 + 6)}]} is: [RRB NTPC 04/03/2021 (Morning) ]

Correct Answer: (b)
Solution:

39. The value of 27 × 4.15 + 30.8 ÷ 22 is: [RRB NTPC 04/03/2021 (Morning)]

Correct Answer: (a) 113.45
Solution:

27 × 4.15 + 30.8 ÷ 22
= 27 × 4.15 + 1.4
= 112.05 + 1.4
= 113.45

40. If (3ˣ)(3ʸ) = 9 and (25ˣ)(5ʸ) = 625, then what is (x, y)? [RRB NTPC 04/03/2021 (Morning)]

Correct Answer: (b) (2, 0)
Solution: