Question

Form pair of linear equation in two variables using the given statement.
The cost of a bulb is twice that of a lamp; the cost of a bulb and lamp together is Rs. 25.
Also plot graph for them.​

Answer 1

Answer:

Step-by-step explanation: let the cost of bulb is x and the cost of lamp be y .

Then the equations are -

x = 2y and x + y = 25

Therefore , x = 50/3 and y = 25/3