Rita thinks of a number, subtracts 3 from it and then divides the number by 8. If at the end, she is left with a number 3, then find the number she thought of.

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Solution

The correct option is B 27
Let the number be $x$ .
If she subtracts 3 from the number and divides that by 8, she gets a number $(\frac{x - 3}{8}) .$

According to the question, this number is equal to 3.

$\Rightarrow \frac{x - 3}{8} = 3 \Rightarrow x - 3 = 3 \times 8 \Rightarrow x - 3 = 24 \Rightarrow x = 24 + 3 \Rightarrow x = 27$

So, the number she thinks of is 27.

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Rita thinks of a number, subtracts 3 from it and then divides the number by 8. If at the end, she is left with a number 3, then find the number she thought of.

The correct option is B 27Let the number be x. If she subtracts 3 from the number and divides that by 8, she gets a number (x−38). According to the question, this number is equal to 3. ⇒ x−38=3⇒x−3=3×8⇒x−3=24⇒ x=24+3⇒ x=27 So, the number she thinks of is 27.