Question

a public sewer line is being installed along 80 1 /2 of road. the supervisor says that the labourers will be able to complete 7.5 m in one day .how long will the project take to complete ​

Answer 1

Answer:

11 days

Step-by-step explanation:

The length of sewer line to be installed: 80 1/2 m

The length of sewer line installed in one day: 7.5 m

Time to complete installation- ?

Time is equal to total length / length installed per day:

• So time= 80 1/2 m/ 7.5 m

80 1/2 m = 161/2 m and 7.5 m = 15/2 m

• (161/2)/(15/2)= 161/15 = 10 11/15 days ≈ 11 days as it takes most of day 11

Answer is 11 days