Pictograms and bar graphs questions with answers

Questions

1. Question 1Read a pictogram

   The pictogram shows the bags of rice sold at a shop. Find the number of bags of rice for Week 3.

   Show the worked solution

   1. Step 1: Count the symbols for Week 3 (half a symbol is 0.5)There are $6.5$ symbols for Week 3.
   2. Step 2: Each symbol represents 10 bags of rice$6.5 \times 10$$= 65$
2. Question 2Pictograms: totals and differences

   The pictogram shows the cars passing a junction. Find how many more cars there are for 11 am than for 7 am.

   Show the worked solution

   1. Step 1: How many more symbols?$7.5 - 1 = 6.5$ symbols
   2. Step 2: Each symbol represents 2 cars$6.5 \times 2$$= 13$
3. Question 3Bar graphs: how many more?

   The bar graph shows how pupils travel to school. Find how many more pupils there are for Car than for MRT.

   Show the worked solution

   1. Step 1: Work out what one small division stands for, then read the two barsOne small division stands for $5$.Car: $95$; MRT: $80$
   2. Step 2: Subtract$95 - 80$$= 15$
4. Question 4Bar graphs: percentage of the total

   The bar graph shows the cars passing a junction. Express the number of cars for 11 am as a percentage of the total number of cars.

   Show the worked solution

   1. Step 1: Read every bar and add them up$\text{Total} = 13 + 9 + 17 + 20 + 21$$= 80$
   2. Step 2: 11 am as a percentage of the total$\dfrac{21}{80} \times 100\%$$= 26.25\%$
5. Question 5Pictograms with the key missing

   The pictogram shows the favourite hawker food of a class, but its key is missing. The number of pupils for Nasi lemak is $200$. Find the number of pupils for Chicken rice.

   Show the worked solution

   1. Step 1: Find what one symbol represents: count the symbols for Nasi lemak$1 \text{ symbol} = \dfrac{200}{4}$$= 50$ pupils
   2. Step 2: Count the symbols for Chicken rice and multiply$1.5 \times 50$$= 75$