A boy must take a red tablet every 20 minutes and a blue tablet every35 minutes. If he takes both tablets at 12pm, what time will he next take both tablets together?
+37159 red 20 40 60 80 100 120 140 160 min
blue 35 70 105 140 min
140 min is 2 hr 20 min
Assuming 12 pm is noon, tablets will be taken together at 2:20 PM or 14:20
