If the average marks of three batches of 55, 60, and 45 students are 50, 55, and 60 respectively, what are the average marks of all the students combined?
Q1. If the average marks of three batches of 55, 60, and 45 students are 50, 55, and 60 respectively, what are the average marks of all the students combined?
Answer: 54.68
Explanation: The correct value is 54.68. Apply the formula or arithmetic step shown in the question and