A red light flashes 3 times per minute,green light flashes 4 times per minute and yellow light flashes 6 times per minute at regular intervals.If all lights start flashing at the same time,how many times do they flash together in each 75 minute?
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75 x 3 = 225
75 x 4 = 300
75 x 6 = 450
450+300+225 = 975
all the light will blink 975 times in 75 mins.
fire up !!!!
75 x 4 = 300
75 x 6 = 450
450+300+225 = 975
all the light will blink 975 times in 75 mins.
fire up !!!!
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