Mahabir Singh Solutions for Chapter: Pair of Linear Equations in Two Variables, Exercise 1: MATHEMATICAL REASONING

The system of equations

$2x+3y=7,$

$2ax+\left(a+b\right)y=28$

Has infinitely many solutions, then the values of $a$ and $b$ respectively are _____

In a $\mathrm{\Delta }ABC$, $\angle C=3\angle B=2(\angle A+\angle B)$. The three angles will be _____

The ratio of a $2$-digit number to the sum of digits of that number is $4:1$. If the digit in the unit place is $3$ more than the digit in the tens place, what is the number?

Sum of two numbers is $64$ and their difference is $22$. Find the numbers.

If a pair of linear equations in two variables is consistent, then the lines represented by two equations are:

The solution of the system of equations $\frac{2x+5y}{xy}=6$ and $\frac{4x-5y}{xy}+3=0$, (where $x\ne 0,y\ne 0)$, is _____

Value of x in a pair of linear equations $36x+24y=702$ and $24x+36y=558$ is _____

Which of the following linear equation coincide with the line $4x+5y=15$?