two assembly line inspectors , lauren and steven , inspect widgets as they come off the assembly line . if lauren inspects every fifth widget , starting with the fifth , and steven inspects every third , starting with the third , how many of the 99 widgets produced in the first hour of operation are not inspected by either inspector ?
"widgets inspected by lauren : ( ( 95 - 5 ) / 5 ) + 1 = 18 + 1 = 19 widgets inspected by steven : ( ( 96 - 3 ) / 3 ) + 1 = 31 + 1 = 32 widgets inspected by both : ( ( 90 / 15 ) + 1 = 7 total : 19 + 32 - 7 = 44 hence , widgets not inspected : 99 - 44 = 55 option e"
subtract(99, subtract(add(floor(divide(99, add(const_4, const_1))), floor(divide(99, const_4))), floor(divide(99, add(const_10, add(const_4, const_1))))))