AMO Grade 6 – Tuyển chọn câu hỏi AMO – Lớp 6

AMO Grade 6

Week 1

Choose correct answer(s) from the given choices

(1) Find the missing number.

a) 5            b) 7         c) 4                 d)3

(2) Write the equation which can describe the relationship between x and y

a. y = x – 2        b. y = x + 5
c. y = 4x – 1      d. y = x – 5

(3) What is the LCM of 3/21 ; 6/18 and 1/24 ?



(4) The ages of Megan and Giselle are in ratio 3 : 5. If sum of their ages is 56 years, what is the age of Giselle?
a) 35 years        b) 21 years
c) 20 years        d) 34 years

(5) If all the letters of the English alphabet are written in order, what will be the letter at the 7th place to the left of letter Q?
a) I             b) J        c) H           d) L

(6) Which of the following makes a number pattern?
a. 4, 6, 8, 9, 11, 13, 15, …            b. 5, 10, 14, 18, 22, 26, …
c. 2, 8, 14, 20, …                          d. 4, 10, 15, 20, 25, 30, …

(7) A square is broken in two pieces.

If one piece is as shown above, which is the other piece?







(8) Few students are standing in a row. Ashley is at the 14th position from the back, and Megan is standing at the 15 th position from the front. If Ashley and Megan interchange their positions, Megan becomes 24th from the front. How many students are there in the row?
a. 39            b. 38
c. 34            d. 37

Fill in the blanks



Week 2

Choose correct answer(s) from the given choices

(1) The parking lot of a mall has a capacity of 1200 cars. On Sunday, the ratio of the empty
parking spots to occupied parking spots is 9:31. The number of cars that were parked there
on that day is:

a. 270           b. 1027         c. 930             d. 369

(2) If the width of a rectangle is 72 cm long and the perimeter of the rectangle is 5.16 m, then the ratio of the width of the rectangle to its length is:

a. 11:31            b. 12:30         c. 12:31              d. 13:32

(3) How many mobile phones, as shown below, will be there in Pattern 13?

a. 45            b. 41           c. 39           d. 43

Fill in the blanks

(4) Daniel and Gabrielle start from the same point. Daniel walks 3 km in North direction, then turn left and walks for 4 km. Gabrielle walks 4 km in West direction, and turn left and walks for 7 km. Now the distance between Daniel and Gabrielle is ………… km.

(5) There are ……….. months in a year which have exactly 30 days.

Answer the questions

(6) Find the value of z

(7) There are 50 employees in a bank working in three shifts. The first group of 10 employees work from 09:00 AM to 12:00 PM. The second group of 20 employees work from 10:00 AM to 01:00 PM. The third group of 20 employees work from 12:00 PM to 01:00 PM. If there are only 9 computers available, find the time during which the computers are likely to be used the most?

(8) What is the value of the supplement of the complement of 36°?

(9) What percentage of the following letters cannot be drawn using straight lines ?


(10) The ratio of the weight of Dylan to that of his friend Caleb is 4:9. Caleb goes on a diet and loses 8 kg and now the ratio of their weights is 4:7. How much does Caleb weigh now?

Week 3

Choose correct answer(s) from the given choices

(1) The product of two given numbers is 1029. Both of them are divisible by 7 but neither of them is 7. Find the larger of the two numbers.

a. 42       b. 56      c. 63      d. 49

(2) The following bar chart shows the number of fruits in a shop.

How many fewer mangoes are there than pineapples?
a. 30    b. 50     c. 40    d. 20

(3) The water tank in your school holds 150\frac{4}{7} liters of water. One day it was \frac{1}{2} full. That day, 41\frac{1}{4} liters of water was used up. How many liters of water remained in the tank at the end of the day?

a. 37\frac{1}{30}
b. 34\frac{1}{28}
c. 35\frac{1}{28}
d. 34\frac{4}{28}

(4) The police-station is 5 km South of the bank, and the train-station is 5 km East of the bank. The train-station is in which direction of the police-station?

a. East               b. North-East
c. South-West   d. North

Fill in the blanks

(5) (100% of $5) + (5% of $100) + $5 = $……….

(6) If * be an operation such that a*b = ab(a+b)(a-b), then 2*8 = ………..

Answer the questions

(7) What is the absolute value of | a – 1 |, if a is greater than 1 ?

(8) Daniel is the brother of the son of Cayden’s son. How is Daniel related to Cayden?

(9) Among five friends, Kate is taller than Kayden, but not as tall as Gabrielle. Sarah is taller than Giselle but shorter than Kayden. Who is the shortest in the group ?

Week 4

Choose correct answer(s) from the given choices

(1) If the width of a rectangle is 44 cm long and the perimeter of the rectangle is 3.28 m, then the ratio of the width of the rectangle to its length is:

a. 11:30    b. 10:30
c. 12:31    d. 11:29

(2) A number is multiplied by 5 and 25 is added to their product. If their result is 120, what was the original number?

a. 17       b. 19
c. 22       d. 18

(3) During a day, the hour hand and the minute hand of a clock forms a right angle, at multiple times. For example, the two hands form a right angle at 9 am. How many times during a day (24 hours) will the two hands form a right angle?

a. 44      b. 48
c. 52      d. 36

(4) If ♦♦♦♦♦ = 40, what is the value of ♦♦♦♦♦♦♦?

a. 64     b. 40
c. 72     d. 56

(5) A survey was done in all the schools of Seletar, where each student was asked about
their favorite food item. The result of the survey is shown in the circle chart.

What is the most liked food item among the students of Seletar?

a. French fries    b. Pasta
c. Burger            d. Sandwich

Fill in the blanks

(6) A rectangular ground’s length is 3 times its breadth. If its perimeter is 56 meters, the length and breadth of the ground are ……. meters and ………. meters, respectively.

(7) The number of days left in the month of June are 14 more than the number of days already passed. …….. days are left in the month.

Answer the questions

(8) Gabrielle’s parents planted a tree on her birth. If the tree grows 3 inches per year, what is Gabrielle’s age today?

(10) Isabelle can finish a work in 60 minutes. Sarah works twice as fast as Isabelle. How long will it take to finish the work, if Isabelle and Sarah work together?

Week 5

Choose correct answer(s) from the given choices


\frac{{0.6 - 0.6\,of\,0.6}}{{0.6 - 0.6 \times 0.6}} = ......................

a. \frac{1}{36}
b. \frac{1}{0.36}
c. 1
d. None of these

(2) Caleb likes 400 but not 380, 2500 but not 2600, and 5625 but not 5620. Which of the following four numbers would he like?

a. 361      b. 359
c. 351      d. 362

(3) Find the missing number.

a. 28       b. 26
c. 31       d. 29

a. $10         b. $14
c. $11         d. $12

(5) The sum of two numbers is 4500. If one of the addends is three times the other addend, then what is the value of the smaller addend?

a. 1125        b. 1518
c. 3375        d. none of these

(6) Complete the pattern

(7) Which of the following pairs show a perfect reflection over the line ?

Fill in the blanks

(8) …………….% of 200 + 70% of 1000 = 740.

Answer the questions

(10) A rectangular ground’s length is 2 times its breadth. If its perimeter is 42 meters, what is the length and the breadth of the ground?

Week 6

Choose correct answer(s) from the given choices

(1) The value of the supplement of the complement of 69° is :

a. 21°          b. 150°
c. 159°        d. None of these

(2) The number of hours left in a day is one third the number of hours already passed. How many hours have already passed in the day?

a. 24 hours        b. 21 hours
c. 18 hours        d. 15 hours

(3) Find the missing number.

81065, 84065, 87065, _______, 93065, 96065, 99065.

a. 90065        b. 85065
c. 95065        d. 100065

(4) Chloe introduces Kayden as the son of the brother of her mother. How is Chloe related to Kayden?

a. Daughter        b. Cousin
c. Nephew          d. Aunt

(5) A man lost 11% of his salary and spent 7% of the remaining. He still has $100. Find his total salary.

a. $120.82        b. $1000
c. $12.082        d. None of these

(6) If number in the center is the sum of all other numbers, find value of b.

a. 6        b. 10
c. 9        d. 8

Fill in the blanks

(7) In a warehouse, the workers start their work daily at 07:45 AM and end at 06:00 PM. They get a break of 50 minutes to have lunch and two coffee breaks of 20 minutes each.

The simplest form of ratio of the time they spend working to the time of their breaks is ……….. : ………..

Answer the questions

(8) Find the L.C.M of 5/4 and 3/5

(9) Ryan ordered 10 cartons of colour pencils. Each carton holds 20 boxes and each box has 37 colour pencils. How many colour pencils did Ryan order altogether?

(10) Kate roughly estimates product 28 × 703 as follows,
– She rounded off each number to the nearest ten.
– Then she multiplied the numbers.
What is her estimate?

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