If the mean of the following distribution is 66, find the value of (5x + 3y). [Table — class : 0-20, 20-40, 40-60, 60-80, 80-100, total; frequency : 7, 20, x, 8, y, 85. Verify the original table at publication.]
Subject: Mathematics | Topic: Statistics | Difficulty: MEDIUM
Options
- (A) 159
- (B) 166
- (C) 141
- (D) 156
Verified Answer
Option (D): 156
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