Question

5. A student's marks were wrongly entered as 89 instead of 72. Due to that the average marks of the class
got increased by half. Find the number of students in the class.​

Answer 1

Step-by-step explanation:

student's marks were wrongly entered as 89 instead of 72. Due to that the average marks of the class

got increased by half. Find the number of students in the class.