Six identical rectangular boxes can be stored in a cupboard 1.5 m high. Two arrangements are shown below. The arrangement in figure A leaves a 30-cm gap at the side. The arrangement in figure B leaves a 13-cm gap at the side and another gap at the top.

1. Find the width of one box based on Figure A's vertical arrangement

From Figure A, 3 boxes stacked vertically match the cupboard's height of $1.5\text{ m} = 150\text{ cm}$.
Width of one box $= 150 \div 3 = 50\text{ cm}$

2. Calculate the width of the cupboard using Figure B

In Figure B, the boxes are oriented vertically. Assuming 3 columns of boxes are placed side-by-side, the total width occupied by the boxes is $3 \times 50 = 150\text{ cm}$.
Width of the cupboard $= 150 + 13 = 163\text{ cm}$

3. Convert the width to metres

$163\text{ cm} = 1.63\text{ m}$