Answer
(b)
Work Step by Step
First let's convert hectares to acres:
$10000\text{ hectares}\times 2.5\text{
acres/hectare}=25000\text{ acres}.$
We calculate orange production lost:
$25000\text{ acres}\times 20\text{ tons/acre}=500000\text{ tons}.$
Then we calculate the percentage of the total crop lost:
$\frac{500000}{8000000}\times 100\%=6.25\%.$
So around $6$ percent were lost.
The answer is (b).
