Mathematics | Maths Mcqs – 4

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Officerswiki is a free education & learning platform for all students and working professionals, where they can practice multiple-choice questions & answers (MCQs). These all MCQs on Officerswiki are FreeMcqs which are helpful in all types of exams such as PPSC, FPSC, CSS, NTS,  PMS, and UPSC.  2023 Maths MCQS 

The sum of five numbers is 655. The average of the first two numbers is 85 and the third number is 125. Find the average of the two numbers?

A. 180
B. 170
C. 190
D. 175

Find the average of the series : 312, 162, 132, 142 and 122?

A. 194
B. 174
C. 162
D. 186

The average age of a group of 10 persons was decreased by 3 years when one person, whose age was 42 years, was replaced by a new person. Find the age of the new person?

A. 22
B. 24
C. 12
D. 8

The average of the marks of 12 students in a class is 36. If the marks of each student are doubled, find the new average?

A. 72
B. 45
C. 37
D. 79

The average of 10 numbers is 23. If each number is increased by 4, what will the new average?

A. 22
B. 27
C. 25
D. 29

The average of 35 numbers is 25. If each number is multiplied by 5, find the new average?

A. 125
B. 134
C. 170
D. 98

The average salary of a person for the months of January, February, March and April is Rs.8000 and that for the months February, March, April and May is Rs.8500. If his salary for the month of May is Rs.6500, find his salary for the month of January?

A. 3000
B. 2500
C. 4500
D. 5000

The average marks of a class of 30 students is 40 and that of another class of 50 students is 60. Find the average marks of all the students?

A. 50
B. 47.5
C. 59
D. 52.5

A batsman makes a score of 64 runs in the 16th innings and thus increased his average by 3. Find his average after the 16th inning?

A. 17
B. 29
C. 18
D. 19

The average of 13 numbers is 60. Average of the first 7 of them is 57 and that of the last 7 is 61. Find the 8th number?

A. 46
B. 32
C. 68
D. 51

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