Four subjects are given weights 2, 3, 4 and 1 respectively. A student scored 60, 70, 80 and 90 marks in these subjects. What is the weighted mean of these marks?
Subject: Mathematics | Topic: Statistics | Difficulty: MEDIUM
Options
- (A) 64
- (B) 78
- (C) 68
- (D) 74
Verified Answer
Option (D): 74
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