pat , kate , and mark charged a total of 144 hours to a certain project . if pat charged twice as much time to the project as kate and 1 / 3 as much time as mark , how many more hours did mark charge to the project than kate ?
"80 all u do is do 2 : 1 : 6 = > 2 x + x + 6 x = 144 = > x = 16 32 : 16 : 96 96 - 16 = 80 answer b"
subtract(divide(144, add(add(1, divide(1, 3)), divide(1, multiply(3, const_2)))), divide(divide(144, add(add(1, divide(1, 3)), divide(1, multiply(3, const_2)))), multiply(3, const_2)))