30 families in an area spend the following monthly expenditure on food : 115, 159, 196, 205, 212, 223, 256, 271, 310, 219, 335, 169, 184, 234, 245, 241, 265, 298, 144, 135, 172, 173, 229, 20, 238, 278, 243, 20, 238, 238.
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