Question

Anina thinks of a number and subtract 5/2 from it. She multiples the result by 8 .The result now obtained is 3 times the same number she thought of. What is number.
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Answer 1

Answer:

Let the number be "x"

then

$( \frac{x}{1} - \frac{5}{2} ) \times 8 = 3x \\ \\ 8x - 20 = 3x \\ 5x = 20 \\ x = 4$

hence x = 4

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