Question

The cost of 12 chair and 8 table is rupees 676.then what is the price of 21 chair and 14 table

Answer 1

Answer:

12x+8y=676

4(3x+2y)=676

3x+2y=164

21x+14y=?

7(3x+2y)

we know that

3x+2y=164

7(164)=

1148