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# Balbharati solutions for Maharashtra state board Class 8 Mathematics chapter 12 - Equations in one variable [Latest edition]

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## Chapter 12: Equations in one variable

Practice Set 12.1Practice Set 12.2

#### Balbharati solutions for Maharashtra state board Class 8 Mathematics Chapter 12 Equations in one variable Exercise Practice Set 12.1 [Pages 77 - 87]

Practice Set 12.1 | Q 1.1 | Page 77

The Equation given below is followed by the values of the variable. Decide whether these values are the solutions of that equation.

x − 4 = 3, x =−1, 7,−7

Practice Set 12.1 | Q 1.2 | Page 87

The Equation given below  is followed by the values of the variable. Decide whether these values are the solutions of that equation.

9m = 81, m = 3, 9, −3

Practice Set 12.1 | Q 1.3 | Page 77

The Equation given below is followed by the values of the variable. Decide whether these values are the solutions of that equation.

2a + 4 = 0, a = 2, −2, 1

Practice Set 12.1 | Q 1.4 | Page 77

The Equation given below is followed by the values of the variable. Decide whether these values are the solutions of that equation.

3 − y = 4, y = −1, 1, 2

Practice Set 12.1 | Q 2.01 | Page 77

Solve the following equation.
17p − 2 = 49

Practice Set 12.1 | Q 2.02 | Page 77

Solve the following equation.

2m + 7 = 9

Practice Set 12.1 | Q 2.03 | Page 77

Solve the following equation.

3x + 12 = 2x − 4\

Practice Set 12.1 | Q 2.04 | Page 77

Solve the following equation.

5(x − 3) = 3(x + 2)

Practice Set 12.1 | Q 2.05 | Page 77

Solve the following equation.

(9"x")/8 + 1 = 10

Practice Set 12.1 | Q 2.06 | Page 77

Solve the following equation.

"y"/7 + "(y-4)/3 = 2

Practice Set 12.1 | Q 2.07 | Page 77

Solve the following equation.

13x - 5 = 3/2

Practice Set 12.1 | Q 2.08 | Page 77

Solve the following equation.

3(y + 8) = 10(y − 4) + 8

Practice Set 12.1 | Q 2.09 | Page 77

Solve the following equation.

("x" - 9)/("x" - 5) = 5/7

Practice Set 12.1 | Q 2.1 | Page 77

Solve the following equation.

("y" - 4)/3 +3"y"= 4

Practice Set 12.1 | Q 2.11 | Page 77

Solve the following equation.

("b" + ("b" + 1) + ("b" + 2))/4 = 21

#### Balbharati solutions for Maharashtra state board Class 8 Mathematics Chapter 12 Equations in one variable Exercise Practice Set 12.2 [Pages 79 - 80]

Practice Set 12.2 | Q 1 | Page 79

Mother is 25 year older than her son. Find son's age if after 8 years ratio of son's age to mother's age will be 4/9.

Practice Set 12.2 | Q 2 | Page 79

The denominator of a fraction is greater than its numerator by 12. If the numerator is decreased by 2 and the denominator is increased by 7, the new fraction is equivalent with 1/2. Find the fraction.

Practice Set 12.2 | Q 3 | Page 80

The ratio of weight of copper and zinc in brass is 13 : 7. find the weight of zinc in a brass utensil weighing 700 gm.

Practice Set 12.2 | Q 4 | Page 80

Find three conescutive whole numbers whose sum is more than 45 but less than 54.

Practice Set 12.2 | Q 5 | Page 80

In a two digit number, digit at the ten's place is twice the digit at units's place. If the number obtained by interchanging the digits is added to the original number, the sum is 66. find the number.

Practice Set 12.2 | Q 6 | Page 80

Some tickets of ₹ 200 and some of ₹ 100, of a drama in a theatre were sold. The number of tickets of ₹ 200 sold was 20 more than the number of tickets of ₹ 100. The total amount received by the theatre by sale of tickets was ₹ 37000. Find the number of ₹ 100 tickets sold.

Practice Set 12.2 | Q 7 | Page 80

Of the three consecutive natural numbers, five times the smallest number is 9 more than four times the greatest number, find the numbers

Practice Set 12.2 | Q 8 | Page 80

Raju sold a bicycle to Amit at 8% profit. Amit repaired it spending ₹ 54. Then he sold the bicycle to Nikhil for ₹ 1134 with no loss and no profit. Find the cost price of the bicycle for which Raju purchased it.

Practice Set 12.2 | Q 9 | Page 80

A Cricket player scored 180 runs in the first match and 257 runs in the second match. Find the number of runs he should score in the third match so that the average of runs in the three matches be 230.

Practice Set 12.2 | Q 10 | Page 80

Sudhir's present age is 5 more than three times the age of Viru. Anil's age is half the age of Sudhir. If the ratio of the sum of Sudhir's and Viru's age to three times Anil's age is 5:6, then find Viru's age.

## Chapter 12: Equations in one variable

Practice Set 12.1Practice Set 12.2

## Balbharati solutions for Maharashtra state board Class 8 Mathematics chapter 12 - Equations in one variable

Balbharati solutions for Maharashtra state board Class 8 Mathematics chapter 12 (Equations in one variable) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Maharashtra State Board Maharashtra state board Class 8 Mathematics solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Maharashtra state board Class 8 Mathematics chapter 12 Equations in one variable are Solution of Equations in One Variable, Word Problems of Equation in One Variable.

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