a water melon weighs 8.5 kgs.this watermelon contain 70% water by weight.however,once left to dry in the hot sun for 3 days, it loses 75% of the water content(by weight).what is the water content(by weight) percentage in the watermelon after it has been dried in sun for 3 days?

1) 5%
2) 17.4%
3) 36.9%
4) 58.1%
5) 42.2%