Everyday Mathematics: Data Handling | Mathematics Olympiad for Class 3 PDF Download

Q1. In a pictograph, each smiley represents 5 children. If there are 4 smileys in a car, how many  children are there?

(a) 10
(b) 15
(c) 20
(d) 25

Ans: (c) 20

Each smiley = 5 children. With 4 smileys: 4 × 5 = 20 children.

Q2. A bar graph shows 3 kids like dogs, 5 like cats, and 2 like birds. Who likes the most popular pet?

(a) Kids who like dogs
(b) Kids who like cats
(c) Kids who like birds
(d) All like the same

Ans: (b) Kids who like cats

The tallest bar represents the highest number. Here, 5 (cats) is more than 3 (dogs) or 2 (birds).

Q3. A pictograph shows 3 Trees for Apple and 5 trees for Guava. If each tree represents 10 trees, how many trees were there for Peach?

(a) 5
(b) 40
(c) 35
(d) 20

Ans: (b) 40

Each tree = 10
For Peach, there are 4 trees i.e., 4 ×10 = 40 trees.

Q4. Jake recorded the number of pizzas sold for five days. Which day sold the fewest pizzas?

(a) Friday
(b) Wednesday
(c) Tuesday
(d) Monday

Ans: (b) Wednesday

In the pictograph, each pizza picture represents the number of pizzas sold on each day. To find which day had the fewest pizzas sold, we count the pizza pictures for each day:

• Monday → 5 pizzas
• Tuesday → 6 pizzas
• Wednesday → 4 pizzas
• Thursday → 4 pizzas
• Friday → 5 pizzas

Since Wednesday has the least number of pizzas (only ), the correct answer is Wednesday.

Q5. A bar graph shows toys sold: 4 dolls, 6 cars, and 5 balls. How many more cars than dolls were sold?

(a) 1
(b) 2
(c) 3
(d) 4

Ans: (b) 2

• Cars: 6
• Dolls: 4
• Difference: 6 - 4 = 2

Q6. In a pictograph, if one smiley face means 2 cookies, what does 3 smiley faces mean?
(a) 2 cookies
(b) 4 cookies
(c) 6 cookies
(d) 8 cookies

Ans: (c) 6 cookies

Each smiley face represents 2 cookies. For 3 smiley faces: 3 × 2 = 6 cookies, similar to the apple pictograph (1 apple = 10) in the notes.

Q7. A bar graph shows how many books you read. What does the tallest bar mean?
(a) Fewest books
(b) Most books
(c) Shortest books
(d) Longest books

Ans: (b) Most books

In a bar graph, the taller the bar, the bigger the number it represents.

Q8. A pictograph uses 1 star for 5 points. If you see 2 stars, how many points are there?
(a) 5
(b) 10
(c) 15
(d) 20

Ans: (b) 10

Each star = 5 points. With 2 stars: 2 × 5 = 10 points.

Q9. A bar graph shows 4 kids like blue, 6 like red, and 3 like green. Which color is least popular?
(a) Blue
(b) Red
(c) Green
(d) All are equalAns: (c) Green

The shortest bar represents the smallest number. Here, 3 (green) is less than 4 (blue) or 6 (red).

Q10. A bar graph shows fruits eaten: 5 apples, 7 bananas, and 4 oranges. How many more bananas than oranges were eaten?
(a) 1
(b) 2
(c) 3
(d) 4Ans: (c) 3

Bananas: 7, Oranges: 4. Difference: 7 - 4 = 3.