James recently moved to his first brand new house. When he arrived there he discovered that the builder had forgotten something. James popped down to the local DIY shop to enquire about the prices. Luckily the items are quite cheap at the shop. 7 cost £1.00, 10 cost £2.00 and 100 cost £3.00. What had the builder forgotten and how much will 210 cost? answer is below The builder had forgotten the house numbers. The DIY shop charges £1.00 per digit, so 210 will cost £3.00.
