A tank holds 400 tons of sea water when filled. How many tons of liquid of specific gravity 0.9300 will it hold when filled to 90% capacity?

Correct Answer: Option A — 326.6

Tank capacity in tons is calculated by multiplying volume by specific gravity. 400 tons sea water (SG 1.026 equivalent volume base) times 0.9300 specific gravity times 90% filling capacity equals 326.6 tons.