Answer:
450.8 tons of grain remain to be sold after milling.
Explanation:
We know that in total 8% of the original grain is lost (3% spillage + 5% mildew). We can multiply the original 490 tons by 8% to find out how many tons are lost.
490 × 8% ----> 490 x 0.08= 39.2 tons.
We now know that 39.2 tons are lost. We subtract this from the original to see how much remains.
490 - 39.2= 450.8 tons.
We have 450.8 tons remaining.