Question
The average wage of a group of 20 labourers is Rs. 420. If 4 persons receiving average wage of Rs. 300 leave the group and 2 persons receiving average wage of Rs. K join the group, then the average wage of the group increases by Rs. 50. Find the value of ‘K’.
More Average Questions
- The average of four numbers is 150. Two of the numbers are equal (not least), and 50 more than the least number. If the 4th number is twice the least numbe...
- The average of 5 numbers is 24. If one number is removed, the average of the remaining 4 numbers becomes 21. Find the number that was removed.
- A set contains twelve numbers. The average of the first eight numbers is (y - 3), and the average of the last three numbers is (y + 5). The average of the ...
- Average of 15 numbers is 78. The average of the first seven is 74 and of the last five is 92. The eighth number is 40% of the ninth, and the tenth number i...
- The number of students in class 'A' is 100, and the ratio of the number of girls to boys is 2:3. If the average number of boys in classes A and B is 105, a...
- A student calculates the average of five two-digit numbers. If one of them is reversed and the new average increases by 9, and all the numbers are consecut...
- A student’s average score in 8 tests is 56 marks. After the 9th test, his average becomes 58 marks. How many marks did he score in the 9th test?
- A set of 50 observations has an average of 63. Find the new average when each observation is increased 8 times.
- Average of 10 positive integers is calculated as 36. It was later found that while calculating the average, someone mistakenly entered 15 instead of 35. Fi...
- The average of 12 numbers is 28. If one number 34 is replaced by 58, find the new average.
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
