# Solution - Equations Reducible to a Pair of Linear Equations in Two Variables

Account
Register

Share

Books Shortlist
ConceptEquations Reducible to a Pair of Linear Equations in Two Variables

#### Question

The students of a class are made to stand in rows. If 3 students are extra in a row, there would be 1 row less. If 3 students are less in a row, there would be 2 rows more. Find the number of students in the class.

#### Solution

You need to to view the solution
Is there an error in this question or solution?

#### Similar questions VIEW ALL

Formulate the following problems as a pair of equations, and hence find their solutions:

Ritu can row downstream 20 km in 2 hours, and upstream 4 km in 2 hours. Find her speed of rowing in still water and the speed of the current

view solution

Solve the following system of equations \frac { 1 }{ 2x } – \frac { 1 }{ y } = – 1; \frac { 1 }{ x } + \frac { 1}{ 2y } = 8

view solution

Solve the following pairs of equations by reducing them to a pair of linear equations

2/sqrtx +3/sqrty = 2

4/sqrtx - 9/sqrty = -1

view solution

Solve the following systems of equations

(i)\frac{15}{u} + \frac{2}{v} = 17

\frac{1}{u} + \frac{1}{v} = \frac{36}{5}

(ii)  \frac{11}{v} – \frac{7}{u} = 1

\frac{9}{v} + \frac{4}{u} = 6

view solution

Solve \frac { 2 }{ x } + \frac { 1 }{ 3y } = \frac { 1}{ 5 }; \frac { 3 }{ x } + \frac { 2 }{ 3y } = 2 and also find ‘a’ for which y = ax – 2

view solution

#### Reference Material

Solution for concept: Equations Reducible to a Pair of Linear Equations in Two Variables. For the course 8th-10th CBSE
S