Question

Filter A is cleaned immediately after it has

attracted 24 grams of dust. Filter B is cleaned
immediately after it has attracted 30 grams of
dust. Both filters are installed at the same time
and receive the same amount of dust. After how
many grams of dust will both filters be cleaned at
exactly the same time for the first time?​

Answer 1

120 grams of dust

Explanation:

5x24= 120

30x4= 120

this is the first number that both 30 and 24 have in common.