Question
Average salary of 20 employees is ₹50,000 and average salary of 'n' employees is ₹40,000. If average salary of all the employees is ₹45,000, then find the value of (n - 5).
Solution
Sum of salary of employees = 20 × 50000 = 10,00,000 Sum of salary of other employees = 40000n (1000000 + 40000n) ÷ (n + 20) = 45000 Or, 1000000 + 40000n = 45000n + 900000 Or, 5000n = 100000 Or, 'n' = 20 Required value = 20 - 5 = 15
More Average Questions
- The average salary of 28 employees is recorded as ₹ 16,584. If the salary of an employee with value ₹14,526 was entered Wrongly as ₹ 41,238, then the corre...
- What is the average of the squares of the first 35 natural numbers?
- The average of 24 numbers is 42. The average of first 13 numbers is 45 and that of the last 13 numbers is 39. If 12th number and 13th numbers are excluded,...
- There are three numbers 'x', 'y' and 'z' such that average of 'x' and 'y' is 18, average of 'y' and 'z' is 22 and average of 'x' and 'z' is 20. Find the av...
- Average age of 3 children born at intervals of 2 years is 8. How old is the eldest child?
- Three natural numbers are given. If sum of average of any two numbers and the remaining third number is 56, 46 and 50 respectively, then find the sum of gi...
- Average of 8 numbers is 70. If average of first four and last two numbers is 80 and 45, respectively then find the fifth number given that ratio of fifth a...
- The earnings of ‘U’, ‘V’, and ‘W’ are in the ratio 2:3:5. Their average income is Rs. 18,000. If they spend 45%, 55%, and 65% of their respective incomes, ...
- 5 positive numbers are written on a piece of paper. Sum of first 3 numbers is 70 and ratio of the 4th and the 5th number is 2:3. If difference between the ...
- Average of 10 numbers is 45. If 40 and 50 are removed, find new average.
Relevant for Exams:
