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Question

A tea-packet measures 10 cm × 6 cm × 4 cm. How many such tea-packets can be placed in a cardboard box of dimensions 50 cm × 30 cm × 0.2 m?

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Solution

Dimension of a tea packet is 10 cm×6 cm×4 cm.Volume of a tea packet=length×breadth×height=(10×6×4) cm3=240 cm3Also, it is given that the dimension of the cardboard box is 50 cm×30 cm×0.2 m, i.e., 50 cm×30 cm×20 cm ( 1 m=100 cm)Volume of the cardboard box=length×breadth×height=(50×30×20) cm3=30000 cm3 The number of tea packets that can be placed inside the cardboard box=volume of the boxvolume of a tea packet=30000 cm3240 cm3=125

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