Question

What is the difference between the number of people who prefer visiting ice cream parlors midweek and the number of people who prefer visiting ice cream parlors toward the end of the month?

Answer 1

• The given bar graph shows the number of people and their preferences for visiting ice cream parlors.
  
• Scale on the given bar graph:
  $\Rightarrow$1 division = 10 people

$\text{Number of people who visit ice cream parlors midweek}$

• Total divisions in the bar representing the number of people who visit ice cream parlors midweek $=3\times 10$ people $=30$ people
  
• The bar representing the number of people who visit ice cream parlors midweek ends halfway between 30 and 40.
  
• When a bar ends halfway between two grid lines, the value of the bar is halfway between the two numbers on the scale.
  
• So, the number between 30 and 40 is 35.
  
• Therefore, 35 people prefer visiting ice cream parlors midweek.

$\text{Number of people who visit ice cream parlors toward the end of the month}$

• Total divisions in the bar representing the number of people who visit ice cream parlors toward the end of the month $=5\times 10$ people $=50$ people
  
• Therefore, 50 people prefer visiting ice cream parlors toward the end of the month.

$\text{The difference}$

• The difference between the number of people who visit ice cream parlors midweek and the number of people who visit ice cream parlors toward the end of the month:
  $\Rightarrow$$50$ people $-35$ people $\text{= 15 people}$

Hence, option C is correct.