Question

cost of 6 chairs and 2 tables is rs.240.The cost of one table is Rs.5 less than the double of the cost of the chairs.Find out cost of one chair and one table

Answer 1

Let the cost of chair be Rs x
Let the cost of table be Rs y
ATQ
6x+2y=240
3x+y=120

y=2x-5

Putting value of x in upper eq.
3x+2x-5=120
5x-5=120
5x=125
x=25

y=50-5
y=45

Cost of chair Rs 25
Cost of table is Rs 45