Mike is going to buy 1 hammer at $$\(£ 6\)$$ 2 boxes of nails at $$\(£ 3.50\)$$ for each box 4 pieces of wood at $$\(£ 4.20\)$$ for each piece some pairs of gloves at $$\(£ 1.80\)$$ for each pair Mike has $$\(£ 40\)$$ to spend in total on these items. He wants to buy as many pairs of gloves as he can. Work out the greatest number of pairs of gloves that Mike can buy.

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