Ch04#06NewExplianation, #digitalsat, #Panda College board, #EST, #ACT

The College Panda SAT Math 2nd Edition, Chapter 04 No 06
#DigitalSAT,
#06) During a race on a circular race track, a racecar burns fuel at a constant rate. After lap 4, the racecar has 22 gallons left in its tank. After lap 7 the racecar has 18 gallons left in its tank.
Assuming the racecar does not refuel, after which lap will the racecar have 6 gallons left in its tank?