If s- 1 is to be an integer and r- 1 must be divisible by 1 1, then r- 1 is the minimum value =1,and r is the minimum value =1.

S min = 14

s+r=26

10 was added in 30 seconds, and three people died.

More than 30, seven more people.

How many seconds does it take to add 1 person now?

30/t=7/ 1

T = 30/7 seconds

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