[計量] 請問一題計量
In a certain country, a person is born every 3 seconds
and a person dies every 10 seconds. Therefore, the
birth and death reates account for a population growth
rate of one person every
(A) 3 1/3 sec
(B) 4 2/7 sec
(C) 7 sec
(D) 11 2/3 sec
(E) 13 sec
Ans: B
題意看不太懂 請問有誰能解釋一下
順便講一下怎麼算 感謝～
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推
10/17 00:04, , 1F
10/17 00:04, 1F
→
10/17 00:06, , 2F
10/17 00:06, 2F
推
10/17 00:30, , 3F
10/17 00:30, 3F
→
10/17 00:41, , 4F
10/17 00:41, 4F
推
10/17 00:59, , 5F
10/17 00:59, 5F
推
10/17 10:42, , 6F
10/17 10:42, 6F
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