![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
x/5 + 2x/3 = 39
(X/5)*15+(2X/3)*15=39*15
3X+10X=585
13X=585
X=45
For a 1200 meter long highway, if 10% of the total length is to be built the next day after a section is built on the first day, then 5 / 8 of the total length has been built. How many meters have been built on the first day?
It will take 18 days for team a to build a canal alone. Now team a and team B have built the canal together for three days, just one quarter of the total. Team B will build the rest of the canal alone. How many days will it take to complete the task?
For a 1200 meter long highway, if 10% of the total length is to be built the next day after a section is built on the first day, then 5 / 8 of the total length has been built. How many meters have been built on the first day?
5/8=62.5%
62.5%-10%=52.5%
1200 * 52.5% = 630 (m)
A: 630 meters on the first day
It will take 18 days for team a to build a canal alone. Now team a and team B have built the canal together for three days, just one quarter of the total. Team B will build the rest of the canal alone. How many days will it take to complete the task?
It will take X days for team B to repair alone
{(1/18)+(1/x)}*3=(1/4)
x=36
B. it will take 36 days to finish
3/4÷1/36=27
A: it will take 27 days to complete
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