NCERT Solutions for Class 8 Maths Chapter 2 Linear Equations in One Variable Ex 2.6

NCERT Solutions for Class 8 Maths Chapter 2 Linear Equations in One Variable Ex 2.6 are the part of NCERT Solutions for Class 8 Maths. Here you can find the NCERT Solutions for Class 8 Maths Chapter 2 Linear Equations in One Variable Ex 2.6.

NCERT Solutions for Class 8 Maths Chapter 2 Linear Equations in One Variable Ex 2.1

NCERT Solutions for Class 8 Maths Chapter 2 Linear Equations in One Variable Ex 2.2

NCERT Solutions for Class 8 Maths Chapter 2 Linear Equations in One Variable Ex 2.3

NCERT Solutions for Class 8 Maths Chapter 2 Linear Equations in One Variable Ex 2.4

NCERT Solutions for Class 8 Maths Chapter 2 Linear Equations in One Variable Ex 2.5

NCERT Solutions for Class 8 Maths Chapter 2 Linear Equations in One Variable Ex 2.6

Solve the following equations:

Ex 2.6 Class 8 Maths Question 1.

(8x − 3)/3x = 2

Solution:

Ex 2.6 Class 8 Maths Question 2.

9x/(7 − 6x) = 15

Solution:

Ex 2.6 Class 8 Maths Question 3.

z/(z + 15) = 4/9

Solution:

Ex 2.6 Class 8 Maths Question 4.

(3y + 4)/(2 − 6y) = −2/5

Solution:

Ex 2.6 Class 8 Maths Question 5.

(7y + 4)/(y + 2) = −4/3

Solution:

Ex 2.6 Class 8 Maths Question 6.

The ages of Hari and Harry are in the ratio 5 : 7. Four years from now, the ratio of their ages will be 3 : 4. Find their present ages.

Solution.
Let the present ages of Hari and Harry be 5x years and 7x years, respectively.

∴ Present age of Hari = 5 × 4 years = 20 years
∴ Present age of Harry = 7 × 4 years = 28 years.

Ex 2.6 Class 8 Maths Question 7.

The denominator of a rational number is greater than its numerator by 8. If the numerator is increased by 17 and the denominator is decreased by 1, the number obtained is 3/2. Find the rational number.

Solution.
Let the numerator of the given rational number be x.

Then, the denominator of the rational number = x + 8
∴ The rational number = x/(x + 8)
If the numerator is increased by 17 and the denominator is decreased by 1, the number becomes 3/2.