Answer:
10 days delay
Step-by-step explanation:
in ten day 12.5% work done by 80 peoples
then 87.5% work hsas to be done by 70 peoples
the days consoder as 'x'
then( 70/x)*100 = 87.5
1/x = 87.5/7000
x =7000/87.5
x =80
so 70 peoples take 80 days to finish the work
so 10 days delay
