Question 3
A selection of 3 whatsits, 7 doovers and 1 thingy cost a total of \$329. A selection of 4 whatsits, 10 doovers and 1 thingy cost a total of \$441. What is the total cost, in dollars, of 1 whatsit, 1 doover and 1 thingy?
Numerical answer only; a non-negative integer less than 1000.
Numerical answer only; a non-negative integer less than 1000.