ali need 4m of wire to fix a radio .but he had only 2 1 by 2 m of wire with him how much more wire did he need?
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He need 4 m of wire
He had 2 1/2 = 5/2 m
He need = 4 - 5/2 = (8-5) / 2 = 3/2 = 1 1/2 m more wire
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