Question

The given line plot shows the weight of flour used in a bakery. Which of the following gives the total weight of the flour used?


Number of days

• A. 36 $\frac{1}{2}$ kg
• B. 35 $\frac{1}{2}$ kg
• C. 44 $\frac{1}{2}$ kg
• D. 42 $\frac{1}{2}$ kg

Answer 1

The correct option is C 44 $\frac{1}{2}$ kg

The given line plot is


Total weight of flour = 8 $\frac{1}{4}$ + 8 $\frac{3}{4}$ + 8 $\frac{3}{4}$ + 9 $\frac{1}{4}$ + 9 $\frac{1}{2}$

= $\frac{33}{4}$ + $\frac{35}{4}$ + $\frac{35}{4}$ + $\frac{37}{4}$ + $\frac{19}{2}$

= $\frac{33+35+35+37}{4}$ + $\frac{19}{2}$

= $\frac{140}{4}$ + $\frac{19\times 2}{2\times 2}$

= $\frac{140}{4}$ + $\frac{38}{4}$

= $\frac{178}{4}$

= 44 $\frac{2}{4}$

= 44 $\frac{1}{2}$

Hence, the total weight of the flour = 44 $\frac{1}{2}$ kg