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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Similar Questions
Solve the following pair of linear equations by the method of elimination:
$4x - 3y = 8$
$6x - y = \frac{29}{3}$
$4x - 3y = 8$
$6x - y = \frac{29}{3}$
Easy
View SolutionIt can take $12$ hours to fill a swimming pool using two pipes. If the pipe of larger diameter is used for $4$ hours and the pipe of smaller diameter for $9$ hours,only half the pool can be filled. How long would it take for each pipe to fill the pool separately?
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View SolutionThe standard form of $2x = 5y$ is............
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View SolutionSolve the following pair of linear equations in two variables using a graph: $x + y = 8$ and $x - y = 2$.
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View SolutionThe cost of $5$ pants and $8$ shirts is ₹ $3100$. If the cost of a pant is ₹ $x$ and a shirt is ₹ $y$,then the linear equation in two variables is:
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