Question

I need an answer quick.

George found that he blinked 85 times in 15 mins. At this rate, how many seconds passed during 51 blinks?

Answer 1

Solution: The george blink 51 times in 540 seconds.

Step-by-step explanation:

It is given that Geoge blinks 85 times in 15 minutes and we know that 1 minutes = 60 seconds.

`85 times=15 minutes`

`85 times=(15 * 60)seconds`

`1 times=(900)/(85)seconds`

`1 times=(180)/(17)seconds`

`51times=(180)/(17)*(51)seconds`

`51times=180* 3seconds`

`51times=540seconds`

Therefore, the george blink 51 times in 540 seconds.

Answer 2

if 85 blinks = 15 minutes
then 51 blinks = x (cross multiply)
85 × x = 51 × 15
85x / 85 = (51 x 15) / 85
x = (51 × 3) / 17
x = 3 × 3
x = 9
so he blinked 51 times in 9 minutes
if 1 minute = 60 seconds
then 9 minutes = x (cross multiple)
1 × x = 9 × 60
x = 540
therefore 540 seconds passed when he blinked 51 times