A school room is to be built to accommodate 70 children, so as to allow 2.2 m2 of floor and 11 m3 of space for each child. If the room be 14 metres long, what must be its breadth and height?

• A. 12 & 5.5 metres
• B. 13 & 6 metres
• C. 11 & 5 metres
• D. 11 & 4 metres