Average (Railway Maths) (Part – I)

Total Questions: 50

21. Dinesh scored 68 out of 80 in French, 78 out of 100 in English, 48 out of 70 in Spanish and 28 out of 50 in Japanese. Find the total percentage of marks obtained by him? [RPF S.I. 19/12/2018 (Morning)]

Correct Answer: (c) 74%
Solution:

22. An English-based company has 629 men and 629 female employees in a collaborative project. The average attendance of all employees is 72 calls per day. On average, an average 72 calls are received by a male employee every day. What will be the average of the number of calls being attendance by the women staff daily? [RPF S.I. 05/01/2019 (Morning) ]

Correct Answer: (a) 72
Solution:

23. A class of 30 students appeared in a test. The average score of 12 students is 80, and that of the rest is 75. What is the average score of the class? [Group D 18/08/2022 (Afternoon) ]

Correct Answer: (c) 77
Solution:

24. The average of the first twelve multiples of 11 is: [Group D 22/08/2022 (Afternoon)]

Correct Answer: (b) 71.5
Solution:

25. The average of thirteen consecutive integers is 36. If two times the smallest of these 13 integers is added to the largest of these 13 integers. What will be the sum obtained? [Group D 23/08/2022 (Morning)]

Correct Answer: (c) 102
Solution:

26. If the average of 5 consecutive even numbers is 10, then find the number at the center when these five numbers are arranged in ascending order. [Group D 23/08/2022 (Afternoon)]

Correct Answer: (d) 10
Solution:

27. A batsman scored runs in the last 5 innings as follows. If the average score is 43, then find his score in the 4th innings. [Group D 24/08/2022 (Afternoon) ]

Correct Answer: (b) 8
Solution:

28. If the average of two numbers is 26 and one of them is 12, then find the other number. [Group D 24/08/2022 (Evening)]

Correct Answer: (d) 40
Solution:

29. The average of 70 values is 40. If each value is multiplied by 20, what will be the changed average? [Group D 26/08/2022 (Morning)]

Correct Answer: (a) 800
Solution:

30. There are two sections, A and B, of a class, consisting of 40 and 50 students, respectively. If the average weight of students in section A is 36 kg and that of those in section B is 45 kg, then the average weight of the whole class is: [Group D 30/08/2022 (Afternoon)]

Correct Answer: (d) 41 kg
Solution: