EASY
Earn 100

, is a linear equation.
(a)True
(b)False

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Important Questions on Simultaneous Equations
EASY
A fraction becomes when is subtracted from the numerator and it becomes when is subtracted from the denominator. Find the fraction.

MEDIUM
The point of the intersection of the graph of the equations and is . What is the value of ?

MEDIUM
A father's age is three times the sum of the ages of his two children. After years, his age will be two times the sum of their ages. Find the present age of the father.

HARD
The area of a rectangle gets reduced by square units, if its length is reduced by units and the breadth is increased by units. If we increase the length by units and decrease the breadth by units, the area is increased by square units. Find the length and breadth of the rectangle.

MEDIUM
How many solutions will a pair of linear equations have, if the equations are and ?

HARD
Solve the following system of linear equations:

EASY
together have . If less than three-fifth of the amount is equal to half of the amount , then how much does have?

EASY
Find the value of if .

EASY
Find the value of after solving the following equation.

EASY
The sum of four consecutive even numbers is greater than sum of three consecutive odd numbers by . If the sum of least odd and even number is , then find the sum of the largest odd and even numbers.

MEDIUM
Solve the following system of linear equations:

EASY
The population of Patna city is , the decreasing rate of population is per year. Population of Patliputra is , the increasing rate of population is per year. In how many years will the population of both places be equal?

MEDIUM
If we add to the numerator and subtract from the denominator, a fraction reduces to . It becomes if we only add to the denominator. What is the fraction?

MEDIUM
A total of sweets were distributed among children such that each girl gets sweets and each boy gets sweets. Total number of boys is _____.

EASY
If and , then find the value of .

HARD
years ago, I was three times as old as my son. Ten years hence, I will be twice as old as my son. Find my present age and my son's present age.

EASY
A boat takes to travel upstream and downstream, but it takes to travel upstream and downstream. Find the speed of the boat in still water and the speed of the stream.

MEDIUM
The graph of the equation and intersect at the point . What is the value of ?

MEDIUM
Find the number of solutions of a pair of linear equation and .

MEDIUM
A zoo has few number of penguins and polar bears. The total number of heads of both of them is and total number of their feet is . How many polar bears are there in the zoo.

