Mean, Median & Mode (Railway Maths) (Part – I)

Total Questions: 50

31. For the following data, find the weighted mean. [Group D 25/08/2022 (Evening) ]

Correct Answer: (a) 2.66
Solution:

32. Find the mode of the given frequency distribution. [Group D 26/08/2022 (Morning) ]

Correct Answer: (c) 22
Solution:

33. For some given data, if the mean and mode are 42 and 60 respectively, find the median of that data using the empirical relation. [Group D 26/08/2022 (Evening)]

Correct Answer: (d) 48
Solution:

34. If the mean of 22.5, 56, 42.5, 2x + 1, x − 2, 3x, 36 is 30 for x > 0, then find the value of x. [Group D 26/08/2022 (Evening)]

Correct Answer: (d) 9
Solution:

35. Find the median of the given frequency distribution. [Group D 29/08/2022 (Morning) ]

Correct Answer: (b) 190/7
Solution:

36. The median of 9, 11, 15, 17, x, 19, 21 is x, where x is an integer. Which of the following can be the value of x? [Group D 29/08/2022 (Afternoon) ]

Correct Answer: (c) 16
Solution:

37. The table here gives the yield of wheat per hectare of 100 farmers of a village. What is the cumulative frequency of the class preceding the median class? [Group D 30/08/2022 (Morning) ]

Correct Answer: (b) 38
Solution:

38. There are two sets of data A and B. The mean of both sets is same. The median of data B is twice the median of data A. The relation between the modes of sets A and B is [Group D 01/09/2022 (Morning) ]

Correct Answer: (b)
Solution:

39. The monthly wages of 6 employees in a company are ₹ 5,000, ₹ 6,000, ₹ 8,000, ₹ 8,500, ₹ 9,300, and ₹ 9,500. Find the median of their wages. [Group D 01/09/2022 (Afternoon) ]

Correct Answer: (b) ₹ 8,250
Solution:

40. What is the value of (2x+3y), if the mean of the following distribution is 54? [Group D 02/09/2022 (Morning) ]

Correct Answer: (b) 59
Solution: