The floor of a square room of side 4 metres is to be paved with Onyx tiles of size 16 cm × 20 cm. The number of such tiles to be required are:

The floor of a square room of side 4 metres is to be paved with Onyx tiles of size 16 cm × 20 cm. The number of such tiles to be required are:
1). 250
2). 500
3). 2000
4). 200

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