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A rectangular box measures internally 1.6m long, 1m broad and 60cm deep. The number of cubical box each of edge 20cm that can be packed inside the box is:

30
60
90
120

Correct Answer: 120

Explanation:

Number of blocks = $\frac{160 \times 100 \times 60}{20 \times 20 \times 20}$ =120

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