Question

The mean of the data:7, 2x, 4, 14, 5x, 3x, 5 is 10. Find the value of x and also media
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Answer 1

Answer:

$7 + 2x + 4 + 14 + 5x + 3x + 5 + 10 \div 8 = 10$

$30 + 10x \div 8 = 10$

$30 + 10x = 10 \times 8$

$30 + 10x = 80$

$10x = 80 - 30$

$10x = 50$

$x = 50 \div 10$

$x = 5$