At 10:15 AM, Snail 1 crossed the 65-cm mark with a velocity of 4 cm/min. In a great burst of energy. Snail 1 raced to the 90-cm mark in 3 minutes. His velocity as he crossed the 90-cm mark was 7 cm/min. What was the acceleration of snail 1?

I got 1 cm/minute/sec

Is this correct?