Class 10MathematicsPair of Linear Equations in Two VariablesMix Examples - Pair of Linear Equations in Two Variables
MediumSolve the following pair of linear equations:
$21x + 47y = 110$
$47x + 21y = 162$
$21x + 47y = 110$
$47x + 21y = 162$
- A$x = 3, y = 1$
- B$x = 3, y = 2$
- C$x = 2, y = 1$
- D$x = 3, y = 3$
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Similar Questions
$A$ shopkeeper sells $4$ pants and $3$ shirts for Rs. $5000$. The cost of a pair of a pant and a shirt is Rs. $750$. Represent this situation as a pair of linear equations in two variables.
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View Solution$x$ years ago,the age of Mahesh was $y$ years. Then,after $z$ years,his age will be $\ldots$ years.
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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 $km/h$).
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View SolutionSolve the following pairs of equations by the cross-multiplication method:
$0.5x + 0.3y = 0.1$
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$0.5x + 0.3y = 0.1$
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View SolutionFor which values of $p$ and $q$ will the following pair of linear equations have infinitely many solutions?
$4x + 5y = 2$
$(2p + 7q)x + (p + 8q)y = 2q - p + 1$
$4x + 5y = 2$
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Difficult
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