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A normal healthy human heart beats 72 times per minute on average. This rate can vary depending on factors like age, fitness level, and activity.
112 ? 336 840 2520 8820
...11 46 109 208 351 ?
40 41 86 ? 1084 5445
...Find the maximum number of trees which can be planted, 25 meters apart, on the two sides of a straight road 2125 meters long
3720 3842 ? 4092 4220 4350
3601 3602 1803 604 154 36
...640 320 160 ? 40 20
5, 11, 32, 65, ?, 389
44 79 114 149 184 ?