Brenda cuts her grass every 15 days and trims her shrubs every 24 days. if brenda cut her grass and trimmed her shrubs on june 1, how many days will it be before she cuts her grass and trims her shrubs on the same day again

To get the number of days that will pass before Brenda cuts her grass and shrubs on the same day will be found using least common multiple:

15=3*5

24=3*8

thus the LCM (24,15) = 120 days

She will cut the grass again after 120 days