Finding Unknown

Q.

Find two solutions of $3x+4y=12$

Q.

Letters used to represent numbers are called _______.

Q.

Find four solution of the given equation:

$x+2y=6$

Q.

A number when multiplied by $4$ exceeds itself by $36.$ Find the number.

Q. The sum of the ages of 5 children born at intervals of 3 years each is 50 years. What is the age of the youngest child?

1. 7 years
2. 4 years
3. 2 years
4. 6 years

Q.

The Number of girls in the class is five times The number of boys. Which of following cannot be the total number of children in the class

Q.

"Price of oil per liter is 5 times the price of rice per kg." If price of oil is assumed to be x per liter then the price of rice per kg is:

1. x + 5

2. 

3. 

4. 5x

Q.

Tendulkar scored $x$ runs and Pathan scored $98$ runs, while playing together in a one day match. Their total score is

1. $x-98$

2. $x+98$

3. $x+2$

4. $2x$

Q.

By what number should $\frac{-33}{8}$ be divided to get $\frac{-11}{2}$ ?

Q. A number when multiplied by 2 and decreased by 41 gives 3. Find the number.

1. 22
2. 24
3. 28
4. 32

Q. Q. No. 1) Savitri had a sum of rs. X. She spends Rs. 1000 on grocery, Rs 500 on education and she receives Rs 200 as gift. How much money is left with her. Write the algebraic expression for it.

Q. Find the length of the side of the equilateral triangle, whose perimeter is 18 cm.

1. 6

Q.

Rahul's father age is 10 more than the 3 times of Rahul's age. If Rahul is x years old then Rahul's father age is:

1. 3x - 10

2. x + 10

3. 3x

4. 3x + 10

Q. XVI = _____ , XIX = _____

1. 16, 19
2. 14, 19
3. 14, 21
4. 16, 21

Q.

The sum of the present ages of George and Aruma is 60 years. Six years ago, George's age was five times the age of the Aruma. What will Aruma's age after 6 years?

1. 20 years
2. 25 years
3. 18 years
4. 19 years

Q. Find: $(-13)+32-8-1$

Q.

State whether the following statements are true (T) or false (F):

(xi) $2y-7>13$ is an equation.

1. True
2. False

Q. A shopkeeper makes a profit of 46 rupees in a day by selling gel pens. He notices that the profit made by him is 5 less than thrice the number of gel pens sold by him. If he sells p number of gel pens in a day then the correct equation for profit is
$\left[2Marks\right]$

Q.

A man in order to train his new employees gives x questions for one hour and in next hour he gives 10 more question compared to what he gave in the first hour. After two hours he finds the number of questions solved is four less than his target which is 88, how many questions were answered in the first hour?

Q.

An iron piece of length 4 3/4 meter long was cut into 2 pieces one piece is 2 1/6 meter long find the length of other one

Q.

10% of the students in a class are girls. What fraction of the class are boys?

1. $\frac{9}{10}$

2. $\frac{1}{10}$

3. $\frac{8}{10}$

4. $\frac{7}{10}$

Q. If $3x+7=13$, the value of $x$ is

1. 2
2. 3
3. 6
4. None of these

Q. Which of the following is an equation ?

1. $2x+y=9$
2. $x+2y>9$
3. $xy+2<9$
4. $2xy$

Q.

Arpit has some marbles in his bag .He puts half of the marbles in a jar and one-sixth in his pocket . If total marbles are 10 more than twice of the remaining marbles in the bag, then find the number of marbles in the jar.

Q. In an equation, which of the following is true ?

1. LHS = RHS
2. LHS < RHS
3. LHS > RHS
4. LHS $\ne$ RHS

Q. If $3x+7=13$, then, $x$ is

1. 2
2. 3
3. 6
4. None of these

Q. Solve the equation $\frac{5x-3}{12}=1$.

1. 4
2. -3
3. 3
4. 2

Q. The sum of ages of a man and his son is 45 years. Five years ago, the product of their ages was four times the man's age at the time. Find their present ages.

Q.

Rahul's dad's age is 4 more than 3 times of his present age. If Rahul is 11 years old, his dad is

1. 35 years old

2. 36years old

3. 34years old

4. 37years old

Q. Sunita is twice as old as Ashima. If six years is subtracted from Ashima's age and four years added to Sunita's age, then Sunita will be four times Ashima's age. How old were they two years ago?