E. Solve the following numericals. 1. A cuboidal vessel has length 40 cm, breadth 30 cm and height 20 cm. Calculate its volume in mL and L. 2. Find the mass of a piece of copper that occupies a volume of 250 cm3, given that the density of copper is 2.7 g/cm3. 3. An express train moves at a speed of 80 km/h. How far will it travel in 6 h? 4. How long will it take an object moving with a speed of 15 m/s to cover a distance of 30 m? 5. Calculate the speed of an object if it covers 500 metres in 25 seconds.
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Answer:
Correct option is C)
Given, length of the cuboid=20 cm
Breadth of the cuboid =15 cm
Height of the cuboid=10 cm
∴ Volume of the cuboid = length × breadth × height
=3000cm
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