The diagram shows the number of new cars sold in a garage in one year - Junior Cycle Mathematics - Question 4 - 2015
Question 4
The diagram shows the number of new cars sold in a garage in one year.
How many new cars were sold in the months April – June?
In the months October – December, th... show full transcript
Worked Solution & Example Answer:The diagram shows the number of new cars sold in a garage in one year - Junior Cycle Mathematics - Question 4 - 2015
Step 1
How many new cars were sold in the months April – June?
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
From the bar chart, the number of cars sold from April to June is represented by a height of 150 on the graph.
Step 2
How many new cars were sold in October – December?
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Given that the sales for October – December were exactly half of the sales in April – June:
Given sales in April – June is 150:
rac{150}{2} = 75
Thus, 75 new cars were sold in October – December.
Step 3
Draw the bar for October – December
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The bar representing October – December should reach the level corresponding to 75 on the vertical axis of the diagram.
Step 4
When were the most new cars sold? Put a tick (✓) in the correct box.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The most new cars were sold in the period January – March, so a tick (✓) should be placed in that box.
Step 5
Calculate the total number of new cars sold in the year.
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Total cars sold in the year:
January – March: 300
April – June: 150
July – September: 200
October – December: 75
Thus, total is:
300+150+200+75=725
Step 6
Calculate the average (mean) number of new cars sold per month in the year.
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
To find the average number of cars sold per month,
We divide the total number of cars sold by the number of months (12):
rac{725}{12} \\ ≈ 60.4
So, the average number of cars sold per month is approximately 60.4.
Join the Junior Cycle students using SimpleStudy...
