if 1 can of paint is needed for 3 chairs or 2 tables, how many tables could be painted after painting 12 chairs if 7 cans of paint are to be used?

Please answer clearly and explain the solution clearly and easy to understand. Thanks!
(guaranteed medal for a good answer)

Question

if 1 can of paint is needed for 3 chairs or 2 tables, how many tables could be painted after painting 12 chairs if 7 cans of paint are to be used?

Please answer clearly and explain the solution clearly and easy to understand. Thanks!
(guaranteed medal for a good answer)

moongazer · Answer

just explain plss
it is ratio and proportion

amistre64 · Answer

3 is to 1; as 12 is to 4; which leaves 3 cans; 2 is to 1 as x is to 3