Berikut ini adalah soal beserta kunci jawaban Fermat Mathematic Olympiad (FMO) 2021 grade 1 (Sc: Edukultur Indonesia)

**A. Warm-up (4 points per question / No points deducted for wrong answers)**

1. Which figure should be filled in the question mark?

A)

B)

C)

D)

E)

Answer : D

2. How many triangles are there in the figure below?

A) 10

B) 9

C) 8

D) 7

E) 6

Answer : E

3. Ashley placed 6 papers on top of each other one by one all on the ground. Which paper is placed the fifth time?

A) Purple

B) Blue

C) Red

D) Orange

E) Green

Answer : B

4. Lucy has 15 small square pieces glued with each other as the figure below.

At least how many more square pieces does she need to form a big square?

A) 6

B) 7

C) 8

D) 10

E) 9

Answer : D

5. Let’s help Maria answer her question!

A) 4

B) 2

C) 1

D) 5

E) 3

Answer : E

**B. Speed-up (6 points per question / No points deducted for wrong answers)**

6. Jack spent 30 minutes getting ready in the morning and 15 minutes walking

to school. Today, Jack came to school exactly at 8 o’clock. When did he wake

up?

A)

B)

C)

D)

E) None of the above

Answer : B

7. Find the value of the question mark.

A) 11

B) 12

C) 13

D) 14

E) 15

Answer : C

8. Eve brings 12 candies. Alice brings 9 candies and Irene doesn’t bring any

candy. They put all the candies together on a table and divide them equally

among themselves. How many candies does each of the girls get?

A) 3

B) 7

C) 8

D) 9

E) 12

Answer : B

9. The math scores of 5 students are shown in the following graph. Teacher

gives one candy for each student who has a score higher than 6. Teacher gives two more candies for each student who has a score higher than 8. How many candies are rewarded to the students in total?

A) 4

B) 6

C) 9

D) 8

E) 10

Answer : D

10. Jane writes a letter in each card below. How many of those 7 cards can be cut into two identical pieces as the card with letter O?

A) 6

B) 7

C) 3

D) 4

E) 5

Answer : A

**C. Challenge (8 points per question / No points deducted for wrong answers)**

11. The entrance tickets’ price is shown in the picture. If Tom’s family has 2 adults and has to pay $21, how many kids are there in Tom’s family?

A) 2

B) 3

C) 1

D) 0

E) 4

Answer : B

12. With 2 lines, John can cut a square into 4 different pieces. If he wants to cut

the square into 11 different pieces, at least how many lines does he need?

A) 6

B) 11

C) 10

D) 4

E) 5

Answer : D

13. The table below shows the prices of some shirts sold by a clothing store. Mom pays 42 USD for 3 shirts including a white shirt of size M and a black shirt of size L. What is the color and the size of the last shirt?

A) Black – L

B) Grey – M

C) Black – S

D) Black – M

E) Grey – S

Answer : E

14. It is Wednesday on the first day of December 2021. Which day of the week

does the Christmas this year fall on?

A) Friday

B) Thursday

C) Saturday

D) Wednesday

E) Sunday

Answer : C

15. When weighing four bags of rice A, B, C and D, the result is as shown below. List them in order from heaviest to lightest.

A) D, B, A, C

B) A, B, C, D

C) A, C, B, D

D) A, D, B, C

E) C, D, A, B

Answer : A

**D. Star of hope (10 points per question/ 10 points deducted for wrong answer)**

In this part, you should write your answer on the answer sheet.

16. Amy gave Ben 7 candies. Then Ben gave Cindy 16 candies. After that, they

all have the same number of candies. How many candies does Ben have more than Cindy in the beginning?

Answer : 25