Average (SSC) (Part-4)

Total Questions: 50

41. The average height of 40 sticks is 156 cm. Some sticks of average height 162 cm are taken out. If the new average height is 150 cm, then how many sticks are remaining? [SSC MTS 10/05/2023 (Afternoon)]

Correct Answer: (b) 20
Solution:

42. Among four students sitting in a row, average age of last three students is 48 years and the average age of first three students is 50 years. If the age of first student is 56 years, then what is the age of the last student? [SSC MTS 15/05/2023 (Afternoon)]

Correct Answer: (c) 50
Solution:

43. A group of students has an average weight of 42 kg. One student of weight 48 kg leaves the group and another student of weight 44 kg joins the group. If the new average weight becomes 41.6 kg, then how many students are there in the group? [SSC MTS 13/06/2023 (Afternoon)]

Correct Answer: (b) 10
Solution:

44. The average of 7 consecutive odd numbers is A. If next 3 and previous 2 odd numbers to these 7 odd numbers are also included, then what is the new average of these 12 consecutive odd numbers? [SSC MTS 16/06/2023 (Morning)]

Correct Answer: (a) A+1
Solution:

45. The average of marks obtained by S1 and S2 is 30 more than the average marks obtained by S2 and S3. If the marks obtained by S3 is 50, then what are the marks obtained by S1? [SSC MTS 19/06/2023 (Morning)]

Correct Answer: (d) 110
Solution:

46. The average age of 120 members of a society is 62.5 years. By addition of 30 new members, the average age becomes 58.2 years. What is the average age of newly joined members? [SSC CHSL 09/03/2023 (2nd Shift)]

Correct Answer: (b) 41 years
Solution:

47. The average age of a class of 6 girls is x years. Four new girls having ages x - 2, x + 4 x + 8 and x + 10 joins the class. What is the new average age of the class? [SSC CHSL 09/03/2023 (3rd Shift)]

Correct Answer: (b) x + 2
Solution:

48. Average of 9 consecutive odd numbers is 27. If the previous and next odd number to these 9 odd numbers are also included, then what will be the new average? [SSC CHSL 09/03/2023 (4th Shift)]

Correct Answer: (d) 27
Solution:

49. The average of 10 consecutive integers is 343/2 What is the average of first three integers? [SSC CHSL 13/03/2023 (1st Shift)]

Correct Answer: (b) 13
Solution:

50. 2 years ago the average age of husband, wife and child was 28 years, and 5 years ago the average age of husband and child was 21 years. What is the present age of the wife? [SSC CHSL 13/03/2023 (3rd Shift)]

Correct Answer: (a) 38 years
Solution: