The fruit content in both the fresh fruit and dry fruit is the same.
Given, fresh fruit has 68% water. So remaining 32% is fruit content.
weight of fresh fruits is 100kg Dry fruit has 20% water. So remaining 80% is fruit content.
Let weight if dry fruit be y kg.
fruit % in freshfruit = fruit % in dryfruit
(32/100) * 100 = (80/100 ) * y
we get y = 40 kg.