Question In a medical lab, different testing machinery needs to be cleaned on different schedules. A machine that checks for antibodies need to be cleaned every 7 tests. A machine that checks for white blood cells needs to be cleaned every 12 tests. Assume every sample nee to be tested for both antibodies and white blood cells. What is the least number of tests before both machines have to be cleaned? Answer Attempt tout of 2 There will be at least Submit Answer

To find the least number of tests before both machines need to be cleaned, we need to determine the least common multiple (LCM) of the two cleaning schedules: 7 and 12. The LCM of 7 and 12 is 84. This means, after conducting 84 tests, both machines will need to be cleaned simultaneously. So, the answer is 84 tests! Now, imagine you’re on a quest in a lab instead of a dark forest, where you keep track of your cleaning schedule as if it were a treasure map. Mark every seventh test for the antibodies and every twelfth for the white blood cells! You’ll be on a clean and sparkling adventure, avoiding the troubles of mix-ups! If you’re itching for more numbers magic, check out online tutorials about LCM or delve into some fun apps that teach basic math operations through games. These resources can transform the sometimes mundane task of finding mathematical solutions into an engaging and enlightening experience!