Average (SSC) (Part-6)

Total Questions: 50

41. In the month of March, Dalip earned on an average ₹501 per day. For the first 18 days, his average earning was ₹495 and for the last 15 days, his average earning was ₹505. On 18th March, he earned ₹50 more than that earned 17th March. How much (in ₹) did he earn on 18th March? [SSC CGL 21/04/2022 (Afternoon)]

Correct Answer: (a) 502
Solution:

42. The numbers of students in section A and section B of a class are 50 and 62, respectively. The average score in mathematics of all the students is 75. If the average score of students in section A is 20% more than that of students in section B, then what is the average score of students in section A (correct to one decimal place)? [SSC CGL Tier II (29/01/2022)]

Correct Answer: (d) 82.6
Solution:

43. The number of students in a class is 45, out of which 33⅓% are boys and the rest are girls. The average score of girls in Science is 66⅔% more than that of boys. If the average score of all the students is 78, then the average score of girls is: [SSC CGL Tier II (03/02/2022)]

Correct Answer: (c) 90
Solution:

44. The average of the 2-digit numbers 37, 45, 6x and x6 is 48. What is the average of (4x + 3) and (x + 7)? [SSC MTS 05/10/2021 (Afternoon)]

Correct Answer: (b) 15
Solution:

45. In a class of 92 students, the ratio of the number of boys to that of girls is 12 : 11. The average score of girls, in a test 33⅓% more than that of boys. If the average score of all students is 80, then what is the average score of girls? [SSC MTS 5/10/2021 (Evening)]

Correct Answer: (c) 92
Solution:

46. The average of 18 numbers is 65. The average of the first 10 numbers is 72 and that of the last 9 numbers is 58. If the 10th number is excluded, then what is the average of the remaining numbers (correct to one decimal place)? [SSC MTS 6/10/2021 (Evening)]

Correct Answer: (a) 64.6
Solution:

47. The total number of students in class A and B is 92. The number of students in A is 30% more than that of B. The average weight (in kg) of students in B is 50% more than that of students in A. If the average weight of all the students in A and B is 56 kg, then what is the average weight (in kg) of students in B? [SSC MTS 7/10/2021 (Afternoon)]

Correct Answer: (c) 69
Solution:


48. There are three positive numbers. If the average of any two of them is added to the third number, the resulting sums are 154, 148 and 132. The sum of the original three numbers is: [SSC MTS 7/10/2021 (Evening)]

Correct Answer: (d) 217
Solution:

49. There were 1200 students in a hostel. If the number of students is increased by 300, then the expenses of the mess increase by ₹5,000 per day, while the average expenditure per head diminishes by ₹5. The original expenditure of the mess, per day, is: [SSC MTS 11/10/2021 (Evening)]

Correct Answer: (c) ₹50,000
Solution:

50. The average of 40% of a number and 33% of the same number is 73. The average of (1/5)th and (1/4)th of that number  [SSC MTS 12/10/2021 (Evening)]

Correct Answer: (b) 45
Solution: