Marks Based MCQ Quiz in मल्याळम - Objective Question with Answer for Marks Based - സൗജന്യ PDF ഡൗൺലോഡ് ചെയ്യുക
Last updated on Apr 4, 2025
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Marks Based Question 1:
The average marks of a group of 80 students is 96 marks. If another group of 20 students with an average mark of 120 is included, what will be the new average (rounded off to the nearest integer) of the combined group?
Answer (Detailed Solution Below)
Marks Based Question 1 Detailed Solution
Given:
Number of students in first group (n1) = 80
Average marks of first group (avg1) = 96
Number of students in second group (n2) = 20
Average marks of second group (avg2) = 120
Formula used:
New Average = (Sum of marks of first group + Sum of marks of second group) / (Total number of students)
Sum of marks = Number of students × Average marks
Calculation:
Sum of marks of first group = 80 × 96 = 7680
Sum of marks of second group = 20 × 120 = 2400
Total number of students = 80 + 20 = 100
New Average = (7680 + 2400) / 100
⇒ New Average = 10080 / 100
⇒ New Average = 100.8
Rounding off to the nearest integer, the new average is 101.
∴ The new average of the combined group is 101.