Question

every day with marlin. nemmu spends some time playing with the squid eggs. marlin then picks up nemmu from the squid zone at 5 pm in the evening, they swim back home at the same speed. one day, nemmu felt sick while playing and swam back alone to his home at a slower speed. marlin had started swimming from coral at the usual speed for an hour to pick up nemmu when he spotted nemmu on the way. they swam back together at their usual speed to get back to coral. they reached their coral, 40 minutes earlier than usual. how much time did nemmu miss in the squid zone?

Answer 1

Explanation:

the ans to the question is option c, 80