Answer:
the answer maybe will be 62.5 days
Step-by-step explanation:
as for one builder it takes 75 and the 2nd builder builds in 50 so
the 2nd builder does it faster than the 1st one soo when they work together 1 will do the half and the other will do the other so we should take the average of them... WE WILL GET THE ANSWER
Using the knowledge of rate, the number of days it will take the both of them to build the house is 30 days.
Rate is the ratio between two related quantities in different units. Therefore, a builder that takes 75 days to build a house has the rate as follows:
rate = 1 /75
Then, the builder that uses 50 days for the same house has the rate as follows:
rate = 1 / 50
Therefore, combined rate will be as follows;
1 / 75 + 1 / 50 =75 + 50 /3750 = 125 / 3750 = 25 / 750 = 1 / 30
Recall, the rate is 1 building / time taken.
Therefore, it will take both of them working 30 days to build the house.
learn more on rate here: https://brainly.com/question/3907853
