Class 10MathematicsPair of Linear Equations in Two VariablesMix Examples - Pair of Linear Equations in Two Variables
EasySolve the following pair of linear equations by the method of elimination: $2x + 5y = 7$ and $4x + 10y = 12$.
- A$(1, 4)$
- B$(-2, 1)$
- C$(-1, -5)$
- D$\text{No solution}$
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Similar Questions
Solve the following pairs of equations:
$4x + \frac{6}{y} = 15$
$6x - \frac{8}{y} = 14, y \neq 0$
$4x + \frac{6}{y} = 15$
$6x - \frac{8}{y} = 14, y \neq 0$
Difficult
View SolutionAnkita travels $14 \,km$ to her home partly by rickshaw and partly by bus. She takes half an $hour$ if she travels $2 \,km$ by rickshaw and the remaining distance by bus. On the other hand,if she travels $4 \,km$ by rickshaw and the remaining distance by bus,she takes $9 \,minutes$ longer. Find the speed of the rickshaw and of the bus (in $km/h$).
Difficult
View SolutionSolve the following pairs of equations by the cross-multiplication method:
$x - 3y = -5$
$3x = 7y - 13$
$x - 3y = -5$
$3x = 7y - 13$
Easy
View SolutionSolve the following pair of linear equations:
$x + y = 3.3$
$\frac{0.6}{3x - 2y} = -1$,where $3x - 2y \neq 0$
$x + y = 3.3$
$\frac{0.6}{3x - 2y} = -1$,where $3x - 2y \neq 0$
Difficult
View SolutionSolve the following pair of linear equations:
$21x + 47y = 110$
$47x + 21y = 162$
$21x + 47y = 110$
$47x + 21y = 162$
Medium
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