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Question:

A cuboidal water tank is 6m long, 5m wide and 4.5m deep. How many litres of water can it hold?

Solution:

Given: l=6m, b=5m, h=4.5m
⇒Volume of tank = l × b × h
⇒V = 6 × 5 × 4.5 = 135m³
⇒Amount of water hold by 1m³ volume = 1000l
Amount of water hold by 135m³ volume = 135 × 1000 = 135000l