Question

· A, B and C finish a work in 15 days, 20
days and 25 days. If all the three work
for a day each in turn, then on which day
the work will be completed?​

Answer 1

so for this we will do LCM of the 3 no. of days

so LCM of 15,20,25 is 5

so the days they will take will be 5