Help with math problem its hard

Question

A particular fruit's weights are Normally distributed, with a mean of 441 grams and a standard deviation of 5 grams.  

The heaviest 65% of fruits weigh more than how many grams? Round your answer to the nearest gram.

Answer 1

From the table, Prob(z < K) = 0.65 via reverse lookup shows that K=0.3855

z = (x - mean)/stddev

z * stddev + mean = x

0.3855*5 + 441 = 442.9275