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प्रश्न
A number is 27 more than the number obtained by reversing its digits. If its unit’s and ten’s
digit are x and y respectively, write the linear equation representing the above statement.
उत्तर
Total original number is 10y + x
The new number is obtained after reversing the order of digits is 10x + y
According to question
⇒ 10y + x = 10x + y + 27
⇒ 9y - 9x = 27
⇒ y - x = 3
⇒ x - y + 3 = 0
This is the required linear equation for the given information.
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