Question

The cost of 12 chairs and 15 tables is rs. 8,250 and the cost of one table and four chairs is rs.1,350. What is the difference in cost of a table and chair

Answer 1

Step-by-step explanation:

let cost of 1 chair be x

let cost of 1 table be y

so, equations become

12x + 15y = 8250

and x + 4y = 1350

by substitution method,

12(1350 - 4y) = 8250

16200 - 48y = 8250

48y = 7950

then, y = 165.625

and x + 4y = 1350

x + 4(165.625) = 1350

x= 1350- 662.5

x = 687.5