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Question
A birthday cake has two tiers as shown in the figure below. Find the volume of the cake.
Solution
Volume of the cake = Volume of lower cuboid + Volume of upper cuboid
= 20 × 20 × 15 + 10 × 10 × 5 ...[∵ Volume of cuboid = l × b × h]
= 6000 + 500
= 6500 cm3
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