Question

Farmer Fred went to market to sell 51 animals. He sold each pig for $10, each cow for $20 and each chicken for $5.

Happy and exhausted he returned home with $505.
How much in transport fees would Farmer Fred have to pay if he was charged:
$1 per cow,$0.50 per pig and $1 per 3 chickens?

Answer 1

In this situation, If farmer Fred sells $45 for animals ($10 for pigs, $20 for cow, $15 for 3 chickens). He will pay total $2.5 for transport free, finally he earns $42.5. So as he has to pay $29.7 for transport fee, if he brings home $505.( 505 * 2.5 / 42.5 = 29.7)