A chair costs 1/7 of the cost of a table. If a table costs $140, how much will it cost to buy a table and 4 chairs?
One chair costs $140 x 1/7 = $<<140*1/7=20>>20.
Four chairs cost $20 x 4 = $<<20*4=80>>80.
So a table and 4 chairs cost $140 + $80 = $<<140+80=220>>220.
#### 220