amount time it takes recover physiologcally certain kind sudden noise found be

The amount of time it takes to recover physiologcally from a certain kind of sudden noise is found to be normally distributed with a mean of 80 seconds and a standard deviation of 10 seconds. Using the 50%-34%-14% figures, approximately what percentage of score (on time to recover) will be:

Above 100%

Below 100%

Above 90%

Below 90%

above 80%

below 80%

above 70%

below 70%

above 60%

below 60%