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87 + 19 = 106
135
348
87/19 = 4.6, approx.
Average (11, 87, 19) = (11+87+19)/3 = 117/3 = 39
9 plus 87 equals 96.
87 + 15 + 48 = 150
765
The greatest common factor of 19 and 87 is 1.
87+42+78 = 207
1 + 55 + 345 + 87 + 98 = 586
The answer is 672.
99 + 87 = 186