Class 10MathematicsPair of Linear Equations in Two VariablesMix Examples - Pair of Linear Equations in Two Variables
DifficultThe two-digit number whose digit at the unit's place is $x$ and the digit at the ten's place is $y$ is three times the sum of its digits. This statement is written as $\ldots \ldots \ldots \ldots .$
- A$x + 10y = 3x$
- B$10x + y = 3(x + y)$
- C$10y + x = 3(x + y)$
- D$3(10y + x) = x + y$
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