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$3(10y + x) = x + y$
Explore More
Similar Questions
The pair of equations $2x + y = 6$ and $x + \frac{1}{2}y = 4$ has.........
Easy
View SolutionThe cost of $4$ pens and $4$ pencil boxes is $Rs.\, 100$. Three times the cost of a pen is $Rs.\, 15$ more than the cost of a pencil box. Form the pair of linear equations for the above situation. Find the cost of a pen and a pencil box (in $Rs.$).
Medium
View SolutionIf the sum and the difference of the digit at the ten's place and the digit at the unit's place of a two-digit number are the same,then the digit at the unit's place is ...........
Medium
View SolutionIf $x=a$ and $y=b$ is the solution of the equations $x-y=2$ and $x+y=4,$ then the values of $a$ and $b$ are,respectively:
Medium
View SolutionSolve the following pair of equations: $(a \neq 0, b \neq 0)$
$\frac{5}{a} + \frac{3}{2b} = 1$
$\frac{1}{2a} - \frac{3}{b} = 1$
$\frac{5}{a} + \frac{3}{2b} = 1$
$\frac{1}{2a} - \frac{3}{b} = 1$
Difficult
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo