Question 83

Anamika thought of a number. She multiplied it by 2, added 5 to the product and obtained 17 as the result. What is the number she had thought of?

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Solution

Let x be the number thought by Anamika.
If she multiplied it by 2, then the number will be 2x.
Also, added 5 to it and obtained 17 as the result.
$∴ 2 x + 5 = 17 \Rightarrow 2 x = 17 - 5 [t r a n s p o s i n g 125 t o R H S] \Rightarrow x = \frac{12}{2} = 6$
Hence, the number 6 is thought by Anamika.

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