Question

amina thinks of a number and subtract 5by2 from it .she multiplies by 8 The result now obtained is 3 times the same number she thought ​

Answer 1

Correct Question:-

Amina thinks of a number and subtracts 5/2from it.  She multiplies the number by 8. The result now obtained is three time the number she thought. What is the number?

Required Answer:-

The number she thinks is 4.

Explanation:-

GIVEN:-

• Amina thinks of a number.
• She  subtracts 5/2from it.
• She then multiplies the number by 8.
• Number obtained is three times the number she thought.

TO FIND:-

• What is the number?

SYNCING:-

• Let the number Amina thought be 'x'.

• So, by seeing the given statements we will form an equation.

Equation formed$\leadsto\pink{\boxed{\sf{\purple{8\times(x-\frac{5}{2} )=3x }}}}\large\checkmark$

• Now let us solve it.

$\implies \sf{8\times (x-\frac{5}{2 })=3x }$

$\implies \sf{8x- \frac{5}{2 }\times 8=3x }$

$\implies\sf {8x-20=3x}$

$\implies \sf {8x-3x=-20}$

$\implies \sf{5x=20}$

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

$\implies \sf {x=4}$

So, the number Amina thought is 4.

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