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Question:

A cuboidal vessel is 10m long and 8m wide. How high must it be made to hold 380 cubic metres of a liquid?

Solution:

Given: ⇒ l = 10m, b = 8m
⇒ Let the height of a cuboidal vessel be h
⇒ V = l × b × h = 10 × 8 × h
⇒ 380 = 80h
h = 380/80 m³ = 4.75 m³