Subject: mathqa
Question: a scuba diver descends at a rate of 40 feet per minute . a diver dive from a ship to search for a lost ship at the depth of 3000 feet below the sea level . . how long will he take to reach the ship ?
Option: 
A: 75 minutes
B: 77 minutes
C: 70 minutes
D: 72 minutes
Answer: A