Question

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

Please help

Answer 1

9 minutes

Explanation:

Rate of George's blinking:

85 / 15 = 17 blinks in 3 minutes

so after 51 blinks, 51 / 17 = 3, 3 x 3 = 9 minutes