The farmers had to plough a total of 1,456 acres of land.
Step-by-step explanation:
Step 1; The group of farmers ploughed at a rate of 112 acres of land a day which was 8 acres more than schedule.
Scheduled rate = 112 acres per day - 8 acres = 104 acres per day.
So the farmers were supposed to plough 104 acres a day according to schedule.
Step 2; If the farmers finished a day earlier, it means they had to have completed ploughing 104 acres extra by doing an extra 8 acres a day.
So days took to complete ploughing = = 13 days.
So in 13 days, they should have ploughed 13 × 104 = 1,352 acres but due to their increased rate, they ploughed 13 × 112 = 1,456 acres in 13 days.
Difference in acres ploughed = 1,456 - 1,352 = 104 acres.
So the farmers ploughed 1,456 acres in 13 days.
Answer:
200
Step-by-step explanation:
122 is 61%. Of 200
The answer to your question is B. Hope it helped !
Answer:
420m
Step-by-step explanation:
serch
it up
Answer:
The coefficient of variation for <em>A</em> is 24.6%.
The coefficient of variation for <em>B</em> is 33.7%.
Step-by-step explanation:
The coefficient of variation (<em>CV</em>) is well defined as the ratio of the standard deviation to the mean. It exhibits the degree of variation in association to the mean of the population.
The formula to compute the coefficient of variation is,
Consider the data set <em>A.</em>
Compute the mean of the data set <em>A </em>as follows:
Compute the standard deviation of the data set <em>A </em>as follows:
Compute the coefficient of variation for <em>A</em> as follows:
The coefficient of variation for <em>A</em> is 24.6%.
Consider the data set <em>B.</em>
Compute the mean of the data set <em>B </em>as follows:
Compute the standard deviation of the data set <em>B </em>as follows:
Compute the coefficient of variation for <em>B</em> as follows:
The coefficient of variation for <em>B</em> is 33.7%.