Answer:
The factory build total of 67 cars.
Step-by-step explanation:
Number of cars already built =7
Number of cars built every hour = 20
We need to find the number of cars factory can built in 3 hours.
Now in 1 hour = 20 cars are build
so in 3 hours = number of cars built in 3 hours
By Using Unitary method we get;
Number of cars built in 3 hours = [tex]20\times 3 =60 cars.[/tex]
Now we need to find the total car built.
Total car built can be calculated as sum of Number of cars already built and
Number of cars built in 3 hours
Hence we can say that:
Total car built = 7 + 60 = 67
Hence the factory build total of 67 cars.
