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प्रश्न
A matchbox measures 4 cm × 2.5 cm × 1.5 cm. What will be the volume of a packet containing 12 such boxes?
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उत्तर
Matchbox is a cuboid having its length (l), breadth (b), height (h) as 4 cm, 2.5 cm, and 1.5 cm.
Volume of 1 match box = l × b × h
= (4 × 2.5 × 1.5) cm3 = 15 cm3
Volume of 12 such matchboxes = (15 × 12) cm3
= 180 cm3
Therefore, the volume of 12 matchboxes is 180 cm3.
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| S.No. | Objects | l | b | h | Volume (cubic units) |
| 1. | Brick | 6 cm | 8 cm | 10 cm | — |
| 2. | Windowpane | 3 cm | — | 45 cm | 900 cubic cm |
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| 5. | Room | — | 4 m | 3 m | 36 cubic m |
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