4. Find the limit in each
class at the lower limit 1 is the lowest score was 24 and saw the floor is wide. 15
will limit the ground floor is 24 + 15 = 38
, so the limit layer of layer 1 is 24-38
Tier 2 limit, the lower the limit, the upper level of the class that one plus one is 39
to limit class. On the 39-15 -1 = 53
, so the top limit of the first layer is 39-53
on the third floor limit is the lower limit of the upper layer 2 is 54 plus 1
is the upper limit is 54 -. 15 -1 = 68
, so the top limit of the first layer is 54-68 on the fourth floor limit is the lower limit of the upper layer 3 plus 1 is 69 to the upper limit is 69-15 = -1. 83 Thus, the limit is one of the top floors 69-83 5th floor limit is the limit of the upper layer 4 plus 1 is 84 to the upper limit is 84-15 -1 = 98 , so the limit. The first layer is a layer of 84-98.
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