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Question

Question 13
A rational number is such that when you multiply it by
52 and add 23 to the product, you get 712. What is the number?


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Solution

Let therational numberbex.
According to the question, 52x+23=712
52x+2323=71223 [Subtracting 23 from both sides]
5x2=7812
5x2=1512
5x(12)=15×2
60x=30
60x60=3060 [Dividing both sides by 60]
x=12
Hence,the rational number is
12.


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