Answer:
20 days
Step-by-step explanation:
1)Set up the equation:
Time1xWorkers1=Time2xWorkers2
2)Apply the given:
Time1=24 days, Workers1=15 electricians, and Workers2=18 electricians.
3) Acknowledge the problem: We have to solve for Time2
4)Write the equation:
15*24=18*Time2
Time2=15*24/18
=20 days------> your answer
19
1/2*(5+x)*4=48