Let the three numbers be a, b and c respectively. According to question; (a + b + 2c) = 164 × 2 = 328……………..(1) (a + 2b + c) = 176 × 2 = 352……………..(2) (2a + b + c) = 182 × 2 = 364……………..(3) From equation (1), (2) and (3) 4 × (a + b + c) = 1044 a + b + c = 261 (a + b + c)/3 = 87
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