20000/1 × 7/15000× 1/56

1/6

Step-by-step explanation:

It'd be slightly easier to do this computation if we were to write it as follows:

20,000           7             1

* *

     1            15,000       56

20,000/15000 reduces to 20/15, or 4/3, and 7/56 reduces to 1/8.

                            4         1

Thus, we have   *

                             3        8

which in turn reduces to 1/6.

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540