Pair of Linear Equations in Two variables — Maths STD 10 — Question
CBSE BoardEnglish MediumSTD 10MathsPair of Linear Equations in Two variables1 Mark
MCQ
The solution of $3x - 5y = -16$ and $2x + 5y = 31$ :
✓
$x = 3, y = 5$
B
$x = -3, y = 5$
C
$x = 3, y = -5$
D
$x = -3, y = -5$
✓
Answer
Correct option: A.
$x = 3, y = 5$
Given : $3x - 5y = -16 ... (i)$
And $2x + 5y = 31 ... (ii)$
Adding eq. $(i)$ and $(ii),$ we get
$5x = 15$
$\Rightarrow x = 3$
Putting the value of $x$ in eq. $(ii),$ we get
$2(3) + 5y = 31$
$\Rightarrow 5y = 31 - 6$
$\Rightarrow y = 5$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.