A students marks were wrongly entered as 89 instead of 72. Due to that average marks of the class got increased by half. Find the number of students in the class.
Plz provide me with step-by-step calculation.
I will mark you as brainliest.
Plz provide me with step-by-step calculation.
I will mark you as brainliest.
Answers & Comments
Answer:
1
Step-by-step explanation:
89+x/s=3/2(avg)
72+x/s=avg
solve it