4 名技术人员计划在 16 天内维修 416 台电脑。
然而，在维修 10 天后，其中一名技术人员生病无法继续工作。
剩余的电脑由另外三名技术人员来维修。假设这些技术人员的工作效率相同，计算维修完所有 416 台电脑所需的总天数。答案 ... 天

它不会直接告诉你答案，而是问你卡在哪一步看看 AI 是怎么陪你一步步弄懂这道题的

完整解法

1. Find the repair rate per technician per day.

Total technician-days planned:
$4 \times 16 = 64$
So the rate per technician per day is
$\frac{416}{64}=6.5$
computers per day.

2. Find the number of computers repaired in the first 10 days and the number remaining.

In 10 days, 4 technicians repair
$4 \times 10 \times 6.5 = 260$
computers.

Remaining computers:
$416-260=156$

3. Find the additional days needed by 3 technicians and hence the total number of days.

With 3 technicians, the daily repair rate is
$3 \times 6.5 = 19.5$
computers per day.

Time needed for the remaining computers:
$\frac{156}{19.5}=8$
days.

Total number of days:
$10+8=18$

答案

$18$ days

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