4. 286 / 2 (Bag and Racket) = 143
Racket + 20 = Bag
20 / 2 = 10
Bag = 143 + 10 = 153
Racket = 143 - 10 = 133
Total (Proof): 153 + 133 = 286
Note: Formula only works when comparing 2 values.
5. Sorry. Does the table cost 470 more than one chair or both chairs?
6. Cabinet = Bed + 140
Bed = Table + 97
So Table < Bed < Cabinet.
Table = 1662
Bed = 1662 + 97 = 1759
Cabinet = 1759 + 140 = 1899
Total (Proof) = 1662 + 1759 + 1899 = 5320