Advertisement Remove all ads

Selina solutions for Concise Mathematics Class 7 ICSE chapter 12 - Simple Linear Equations (Including Word Problems) [Latest edition]

Chapters

Concise Mathematics Class 7 ICSE - Shaalaa.com
Advertisement Remove all ads
Advertisement Remove all ads
Advertisement Remove all ads

Chapter 12: Simple Linear Equations (Including Word Problems)

Exercise 12 (A)Exercise 12 (B)Exercise 12 (C)Exercise 12 (D)
Advertisement Remove all ads
Exercise 12 (A)

Selina solutions for Concise Mathematics Class 7 ICSE Chapter 12 Simple Linear Equations (Including Word Problems)Exercise 12 (A)

Exercise 12 (A) | Q 1

Solve the following equation:

x + 5 = 10

Exercise 12 (A) | Q 2

Solve the following equation:

2 + y = 7

Exercise 12 (A) | Q 3

Solve the following equation:

a – 2 = 6

Exercise 12 (A) | Q 4

Solve the following equation:

x – 5 = 8

Exercise 12 (A) | Q 5

Solve the following equation:

5 – d= 12

Exercise 12 (A) | Q 6

Solve the following equation:

3p = 12

Exercise 12 (A) | Q 7

Solve the following equation:

14 = 7m

Exercise 12 (A) | Q 8

Solve the following equation:

2x = 0

Exercise 12 (A) | Q 9

Solve the following equation:

`"x"/9 = 2`

Exercise 12 (A) | Q 10

Solve the following equation:

`"y"/-12 = - 4`

Exercise 12 (A) | Q 11

Solve the following equation:

8x - 2 = 38

Exercise 12 (A) | Q 12

Solve the following equation:

2x + 5 = 5

Exercise 12 (A) | Q 13

Solve the following equation:

5x – 1 = 74

Exercise 12 (A) | Q 14

Solve the following equation:

14 = 27 - x

Exercise 12 (A) | Q 15

Solve the following equation:

10 + 6a = 40

Exercise 12 (A) | Q 16

Solve the following equation:

`"c" - 1/2 = 1/3`

Exercise 12 (A) | Q 17

Solve the following equation:

`"a"/15 - 2 = 0`

Exercise 12 (A) | Q 18

Solve the following equation:

12 = c – 2

Exercise 12 (A) | Q 19

Solve the following equation:

4 = x - 2.5

Exercise 12 (A) | Q 20

Solve the following equation:

`"y" + 5 = 8 1/4`

Exercise 12 (A) | Q 21

Solve the following equation:

`"x" + 1/4 = - 3/8`

Exercise 12 (A) | Q 22

Solve the following equation:

p + 0.02 = 0.08

Exercise 12 (A) | Q 23

Solve the following equation:

`"p" - 12 = 2 2/3`

Exercise 12 (A) | Q 24

Solve the following equation:

- 3x = 15

Exercise 12 (A) | Q 25

Solve the following equation:

1.3b = 39

Exercise 12 (A) | Q 26

Solve the following equation:

`5/8 "n" = 20`

Exercise 12 (A) | Q 27

Solve the following equation:

`3/16 "m" = 21`

Exercise 12 (A) | Q 28

Solve the following equation:

2a – 3 =5

Exercise 12 (A) | Q 29

Solve the following equation:

3p – 1 = 8

Exercise 12 (A) | Q 30

Solve the following equation:

9y -7 = 20

Exercise 12 (A) | Q 31

Solve the following equation:

2b – 14 = 8

Exercise 12 (A) | Q 32

Solve the following equation:

`7/10`x + 6 = 41

Exercise 12 (A) | Q 33

Solve the following equation:

`5/12`m - 12 = 48

Exercise 12 (B)

Selina solutions for Concise Mathematics Class 7 ICSE Chapter 12 Simple Linear Equations (Including Word Problems)Exercise 12 (B)

Exercise 12 (B) | Q 1

8y – 4y = 20

Exercise 12 (B) | Q 2

9b – 4b + 3b = 16

Exercise 12 (B) | Q 3

5y + 8 = 8y – 18

Exercise 12 (B) | Q 4

6 = 7 + 2p -5

Exercise 12 (B) | Q 5

8 – 7x = 13x + 8

Exercise 12 (B) | Q 6

4x – 5x + 2x = 28 + 3x

Exercise 12 (B) | Q 7

9 + m = 6m + 8 – m

Exercise 12 (B) | Q 8

24 = y + 2y + 3 + 4y

Exercise 12 (B) | Q 9

19x + 13 -12x + 3 = 23

Exercise 12 (B) | Q 10

6b + 40 = – 100 – b

Exercise 12 (B) | Q 11

6 – 5m – 1 + 3m = 0

Exercise 12 (B) | Q 12

0.4x – 1.2 = 0.3x + 0.6

Exercise 12 (B) | Q 13

6(x+4) = 36

Exercise 12 (B) | Q 14

9 (a+ 5) + 2 = 11

Exercise 12 (B) | Q 15

4 ( x- 2 ) = 12

Exercise 12 (B) | Q 16

-3 (a - 6) = 24

Exercise 12 (B) | Q 17

7 (x - 2) = 2 (2x - 4)

Exercise 12 (B) | Q 18

(x - 4) (2x + 3 ) = 2x²

Exercise 12 (B) | Q 19

21 – 3 (b - 7) = b+ 20

Exercise 12 (B) | Q 20

x (x + 5) = x² +x + 32

Exercise 12 (C)

Selina solutions for Concise Mathematics Class 7 ICSE Chapter 12 Simple Linear Equations (Including Word Problems)Exercise 12 (C)

Exercise 12 (C) | Q 1

Solve: `"x"/2 + "x" = 9`

Exercise 12 (C) | Q 2

Solve: `"x"/5 + "2x" = 33`

Exercise 12 (C) | Q 3

Solve: `"3x"/4 + "4x" = 38`

Exercise 12 (C) | Q 4

Solve: `"x"/2 + "x"/5 = 14`

Exercise 12 (C) | Q 5

Solve: `"x"/3 - "x"/4 = 2`

Exercise 12 (C) | Q 6

Solve: `"y" + "y"/2 = 7/4 - "y"/4`

Exercise 12 (C) | Q 7

Solve: `"4x"/3 - "7x"/3 = 1`

Exercise 12 (C) | Q 8

Solve: `1/2"m" + 3/4"m" - "m" = 2.5`

Exercise 12 (C) | Q 9

Solve: `"2x"/3 + "x"/2 - "3x"/4 = 1`

Exercise 12 (C) | Q 10

Solve: `"3a"/4 + "a"/6 = 66`

Exercise 12 (C) | Q 11

Solve: `"2p"/3 - "p"/5 = 35`

Exercise 12 (C) | Q 12

Solve: 0.6a +0.2a = 0.4 a + 8

Exercise 12 (C) | Q 13

Solve: p + 1.4p = 48

Exercise 12 (C) | Q 14

Solve: 10% of x = 20

Exercise 12 (C) | Q 15

Solve: y + 20% of y = 18

Exercise 12 (C) | Q 16

Solve: x – 30% of x = 35

Exercise 12 (C) | Q 17

Solve: `("x" + 4)/2 + "x"/3 = 7`

Exercise 12 (C) | Q 18

Solve: `("y" + 2)/3 + ("y" + 5)/4 = 6`

Exercise 12 (C) | Q 19

Solve: `("3a" - 2)/7 - ("a" - 2)/4 = 2`

Exercise 12 (C) | Q 20

Solve: `1/2 ("x" + 5) - 1/3 ("x" - 2) = 4`

Exercise 12 (C) | Q 21

Solve: `("x - 1")/2 - ("x - 2")/3 - ("x - 3")/4 = 0`

Exercise 12 (C) | Q 22

Solve: `("x + 1")/3 + ("x + 4")/5 = ("x - 4")/7`

Exercise 12 (C) | Q 23

Solve:  15 – 2 (5 - 3x) = 4 (x - 3) + 13

Exercise 12 (C) | Q 24

Solve: `(2"x" + 1)/("3x" - 2) = 1 1/4`

Exercise 12 (C) | Q 25

Solve: 21 – 3 (x – 7) = x + 20

Exercise 12 (C) | Q 26

Solve: `(3"x" - 2)/7 - ("x" - 2)/4 = 2`

Exercise 12 (C) | Q 27

Solve: `("2x" - 3)/3 - ("x" - 5) = "x"/3`

Exercise 12 (C) | Q 28

Solve: `("x" - 4)/7 = "x + 3"/7 + "x + 4"/5`

Exercise 12 (C) | Q 29

Solve: `("x - 1")/5 - "x"/3 = 1 - "x - 2"/2`

Exercise 12 (C) | Q 30

Solve: 2x + 20% of x = 12.1

Exercise 12 (D)

Selina solutions for Concise Mathematics Class 7 ICSE Chapter 12 Simple Linear Equations (Including Word Problems)Exercise 12 (D)

Exercise 12 (D) | Q 1

One-fifth of a number is 5, find the number.

Exercise 12 (D) | Q 2

Six times a number is 72, find the number.

Exercise 12 (D) | Q 3

If 15 is added to a number, the result is 69, find the number.

Exercise 12 (D) | Q 4

The sum of twice a number and 4 is 80, find the number.

Exercise 12 (D) | Q 5

The difference between a number and one- fourth of itself is 24, find the number.

Exercise 12 (D) | Q 6

Find a number whose one-third part exceeds its one-fifth part by 20.

Exercise 12 (D) | Q 7

A number is as much greater than 35 as is less than 53. Find the number.

Exercise 12 (D) | Q 8

The sum of two numbers is 18. If one is twice the other, find the numbers.

Exercise 12 (D) | Q 9

A number is 15 more than the other. The sum of of the two numbers is 195. Find the numbers.

Exercise 12 (D) | Q 10

The sum of three consecutive even numbers is 54. Find the numbers.

Exercise 12 (D) | Q 11

The sum of three consecutive odd numbers is 63. Find the numbers.

Exercise 12 (D) | Q 12

A man has ₹ x from which he spends ₹6. If twice of the money left with him is ₹86, find x.

Exercise 12 (D) | Q 13

A man is four times as old as his son. After 20 years, he will be twice as old as his son at that time. Find their present ages.

Exercise 12 (D) | Q 14

If 5 is subtracted from three times a number, the result is 16. Find the number.

Exercise 12 (D) | Q 15

Find three consecutive natural numbers such that the sum of the first and the second is 15 more than the third.

Exercise 12 (D) | Q 16

The difference between two numbers is 7. Six times the smaller plus the larger is 77. Find the numbers.

Exercise 12 (D) | Q 17

The length of a rectangular plot exceeds its breadth by 5 m. If the perimeter of the plot is 142 m, find the length and the breadth of the plot.

Exercise 12 (D) | Q 18

The numerator of a fraction is four less than its denominator. If 1 is added to both, is numerator and denominator, the fraction becomes `1/2` Find the fraction.

Exercise 12 (D) | Q 19

A man is thrice as old as his son. After 12 years, he will be twice as old as his son at that time. Find their present ages.

Exercise 12 (D) | Q 20

A sum of ₹ 500 is in the form of notes of denominations of ₹ 5 and₹ 10. If the total number of notes is 90, find the number of notes of each type.

Chapter 12: Simple Linear Equations (Including Word Problems)

Exercise 12 (A)Exercise 12 (B)Exercise 12 (C)Exercise 12 (D)
Concise Mathematics Class 7 ICSE - Shaalaa.com

Selina solutions for Concise Mathematics Class 7 ICSE chapter 12 - Simple Linear Equations (Including Word Problems)

Selina solutions for Concise Mathematics Class 7 ICSE chapter 12 (Simple Linear Equations (Including Word Problems)) 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 CISCE Concise Mathematics Class 7 ICSE solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Selina textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Concise Mathematics Class 7 ICSE chapter 12 Simple Linear Equations (Including Word Problems) are Simple Linear Equations in One Variable, Concept for Inequalities, Concept for Solution of Simple Inequalities in One Variable, Simple Linear Equations in One Variable.

Using Selina Class 7 solutions Simple Linear Equations (Including Word Problems) exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Selina Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 7 prefer Selina Textbook Solutions to score more in exam.

Get the free view of chapter 12 Simple Linear Equations (Including Word Problems) Class 7 extra questions for Concise Mathematics Class 7 ICSE and can use Shaalaa.com to keep it handy for your exam preparation

Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×