Two rooms share a wall with a 1 m doorway in it, as in the plan. Wooden skirting is fixed at the bottom of every wall inside BOTH rooms, but not across the doorway. What length of skirting is needed?

Question

Accepted Answer

30 m. Room A: 2(5 + 4) = 18 m; Room B: 2(3 + 4) = 14 m. The shared wall has skirting on both sides, so total = 32 m. The doorway removes 1 m from each room: 32 - 2 = 30 m.

Two rooms share a wall with a 1 m doorway in it, as in the plan. Wooden skirting is fixed at the bottom of every wall inside BOTH rooms, but not across the doorway. What length of skirting is needed?

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