Question

the turn signal on a car A blinks 3 times every 5 seconds. The turn signal on car B blinks 2 times every 3 seconds . In one minute, how many more times will the turn signal blink on car B than the turn signal on car A

Answer 1

B=2t/3 and A=3t/5

B-A=(2t/3)-(3t/5)

B-A=(10t-9t)/15

B-A=t/15 and the time we are concerned with is when t=60 so

B-A=60/15=4

So B will blink 4 more times than A in one minute.