Think of a number subtract $\frac{5}{2}$ from it multiply it by 8 then the result is 3 times a number. Find the number.

Given:

Subtract $\frac{5}{2}$ from a number, multiply it by 8 then the result is 3 times a number.

 To do:

We have to find the number.

Solution:

Let the numbers be $x$.

According to the question,

$(x-\frac{5}{2})\times8=3x$

$8x-4(5)=3x$

$8x-3x=20$

$5x=20$

$x=\frac{20}{5}$

$x=4$

Therefore, the required number is $4$. 

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Updated on: 10-Oct-2022

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