Multiple choice

The average salary of 20 teachers is Rs.18000 per month. Five teachers left the school and the average salary of the remaining teachers dropped by Rs.2300. Find the total salary of the teachers who left the school.

  1. $124400$
  2. $124450$
  3. $124550$
  4. $124500$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Total salary of 20 teachers = 20 × 18000 = Rs.3,60,000. After 5 leave, 15 remain with new average = 18000 - 2300 = Rs.15,700. Total salary of remaining 15 = 15 × 15700 = Rs.2,35,500. Salary of 5 who left = 3,60,000 - 2,35,500 = Rs.1,24,500.

Keep practicing — related questions