
[請益] 數學題目求解?

答案為40,可是我卻算不出。
請求協助!感謝。
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推
10/19 22:48, , 1F
10/19 22:48, 1F
推
10/19 23:02, , 2F
10/19 23:02, 2F
推
10/19 23:03, , 3F
10/19 23:03, 3F
→
10/19 23:03, , 4F
10/19 23:03, 4F
推
10/19 23:05, , 5F
10/19 23:05, 5F
推
10/19 23:06, , 6F
10/19 23:06, 6F
→
10/19 23:07, , 7F
10/19 23:07, 7F
推
10/19 23:11, , 8F
10/19 23:11, 8F
→
10/19 23:11, , 9F
10/19 23:11, 9F
→
10/19 23:12, , 10F
10/19 23:12, 10F
推
10/19 23:16, , 11F
10/19 23:16, 11F
→
10/19 23:18, , 12F
10/19 23:18, 12F
→
10/19 23:20, , 13F
10/19 23:20, 13F
推
10/19 23:52, , 14F
10/19 23:52, 14F
→
10/20 02:12, , 15F
10/20 02:12, 15F
→
10/20 02:12, , 16F
10/20 02:12, 16F
推
10/20 03:53, , 17F
10/20 03:53, 17F
→
10/20 03:53, , 18F
10/20 03:53, 18F
→
10/20 03:53, , 19F
10/20 03:53, 19F
→
10/20 03:53, , 20F
10/20 03:53, 20F
推
10/20 12:11, , 21F
10/20 12:11, 21F

→
10/20 12:12, , 22F
10/20 12:12, 22F
→
10/20 12:12, , 23F
10/20 12:12, 23F
→
10/20 12:12, , 24F
10/20 12:12, 24F
推
10/20 12:25, , 25F
10/20 12:25, 25F
推
10/20 12:29, , 26F
10/20 12:29, 26F

→
10/20 12:30, , 27F
10/20 12:30, 27F
→
10/20 12:30, , 28F
10/20 12:30, 28F
推
10/20 13:21, , 29F
10/20 13:21, 29F
推
10/21 00:38, , 30F
10/21 00:38, 30F
→
10/21 00:38, , 31F
10/21 00:38, 31F
→
10/21 00:39, , 32F
10/21 00:39, 32F
→
10/21 00:40, , 33F
10/21 00:40, 33F
→
10/21 00:41, , 34F
10/21 00:41, 34F
→
10/21 00:42, , 35F
10/21 00:42, 35F
推
10/21 00:45, , 36F
10/21 00:45, 36F
→
10/21 00:45, , 37F
10/21 00:45, 37F
→
10/21 00:46, , 38F
10/21 00:46, 38F
→
10/21 00:46, , 39F
10/21 00:46, 39F
推
10/22 03:12, , 40F
10/22 03:12, 40F

→
10/22 03:13, , 41F
10/22 03:13, 41F
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