IKMC - grade 5-6
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72 views
Câu hỏi của Vinastudy - Hệ Thống Giáo Dục Trực Tuyến - Toán lớp 5 | Học trực tuyến
A positive integer has three digits. The product of the digits is 135. What is the sum of the digits ?
Hỏi lúc: 13-12-2018 14:36
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50 views
Câu hỏi của Vinastudy - Hệ Thống Giáo Dục Trực Tuyến - Toán lớp 5 | Học trực tuyến
In a restaurant, there are 16 tables, each with 3, 4 or 6 chairs. The tables with 3 or 4 chairs can accommodate 36 people. The restaurant can accommodate 72 people. How many tables are there with 3 chairs ?
Hỏi lúc: 13-12-2018 14:36
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90 views
Câu hỏi của Vinastudy - Hệ Thống Giáo Dục Trực Tuyến - Toán lớp 5 | Học trực tuyến
The points A, B, C, D, E and F lie on a straight line in that order. We know that AF = 35, AC = 12, BD = 11, CE = 12 and DF = 16. What is the distance BE ?
Hỏi lúc: 13-12-2018 14:36
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61 views
Câu hỏi của Vinastudy - Hệ Thống Giáo Dục Trực Tuyến - Toán lớp 5 | Học trực tuyến
Parisa sets her marbles in groups of equal size on the desk. After she arranged the marbles in groups of 3, she found that there were 2 marbles left. The she arranged the marbles in groups of 5, and again there were 2 marbles left. At least how many more marbles does she need so that there won’t be any left when she arranges them in groups of 3 and in groups of 5 ?
Hỏi lúc: 13-12-2018 14:36
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71 views
Câu hỏi của Vinastudy - Hệ Thống Giáo Dục Trực Tuyến - Toán lớp 5 | Học trực tuyến
A plane takes off from Vienna at 11:00 am local time and arrives in Toronto at 1:00 pm local time. On average, it takes 8 hours for a plane of this type to fly this distance. What time is it in Toronto when it is 7:00 am in Vienna ?
Hỏi lúc: 13-12-2018 14:36
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70 views
Câu hỏi của Vinastudy - Hệ Thống Giáo Dục Trực Tuyến - Toán lớp 5 | Học trực tuyến
What is the greatest number N, which, when divided by 7, has a remainder that is equal to the quotient ?
Hỏi lúc: 13-12-2018 14:36
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69 views
Câu hỏi của Vinastudy - Hệ Thống Giáo Dục Trực Tuyến - Toán lớp 5 | Học trực tuyến
The king and his messengers are travelling from the castle to the summer palace at the speed of 5 km/h. Along the way, the king sends a messenger back to the castle; and one hour later, he sends back another messenger. If the messengers travel at a speed of 10 km/h, what is the time between their arrivals at the castle ?
Hỏi lúc: 13-12-2018 14:36
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54 views
Câu hỏi của Vinastudy - Hệ Thống Giáo Dục Trực Tuyến - Toán lớp 5 | Học trực tuyến
The 3 x 3 x 3 cube in the picture is made of 27 small cubes.
How many small cubes do you have to remove to see the following result when viewing from the right, from above, and from the front ?
Hỏi lúc: 13-12-2018 14:36
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65 views
Câu hỏi của Vinastudy - Hệ Thống Giáo Dục Trực Tuyến - Toán lớp 5 | Học trực tuyến
Andy made a playlist 5 songs ( A, B, C, D and E ). Song A is 3 minutes long, song B is 2 minutes and 30 seconds, song C is 2 minutes, song D is 1 minute and 30 seconds, and song E is 4 minutes. The songs play in this order in a continuous loop. If Andy left the house when song C was just starting, what song was playing when he got back home 1 hour later ?
Hỏi lúc: 13-12-2018 14:36
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60 views
Câu hỏi của Vinastudy - Hệ Thống Giáo Dục Trực Tuyến - Toán lớp 5 | Học trực tuyến
Dan entered the numbers from 1 to 9 in the cells of a 3 x 3 table. He began by placing the numbers 1, 2, 3 and 4 as shown in the picture:
It so happened that for the number 5, the sum of the numbers in the adjacent cells ( having a common side ) was equal to 9. What is the sum of the numbers adjacent to the number 6 ?
Hỏi lúc: 13-12-2018 14:36
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99 views
Câu hỏi của Vinastudy - Hệ Thống Giáo Dục Trực Tuyến - Toán lớp 5 | Học trực tuyến
Rabbit Vasya loves cabbage and carrots. In a day, he eats either 9 carrots, or 2 heads of cabbage, or I head of cabbage and 4 carrots. But some days he only eats grass. Over the last 10 days, Vasya ate a total of 30 carrots and 9 heads of cabbage. On how many of these 10 days did he eat only grass ?
Hỏi lúc: 13-12-2018 14:36
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63 views
Câu hỏi của Vinastudy - Hệ Thống Giáo Dục Trực Tuyến - Toán lớp 5 | Học trực tuyến
Trees grow on only one side of Park Avenue. There are 60 trees in total. Every second tree is a maple, and every third tree is either a linden or a maple. The remaining trees are birches. How many birches are there ?
Hỏi lúc: 13-12-2018 14:36
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67 views
Câu hỏi của Vinastudy - Hệ Thống Giáo Dục Trực Tuyến - Toán lớp 5 | Học trực tuyến
Granny has 10 grandchildren, all of different ages. Alice is the eldest. The sum of the ages of all grandchildren is 180. At least how old is Alice ?
Hỏi lúc: 13-12-2018 14:36
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95 views
Câu hỏi của Vinastudy - Hệ Thống Giáo Dục Trực Tuyến - Toán lớp 5 | Học trực tuyến
A thin colourful ribbon is stuck on a transparent plastic cube ( see the picture ).
Which of the following pictures does not represent the cube as seen from any perpective ?
Hỏi lúc: 13-12-2018 14:36
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51 views
Câu hỏi của Vinastudy - Hệ Thống Giáo Dục Trực Tuyến - Toán lớp 5 | Học trực tuyến
Bob is going to visit four cities. He will start from and end up in his home town. The figure shows a map of the regions with the cities. The roads are only along the grid lines.
Bob wants to make the trip as short as possible. Which route should Bob follow ?
Hỏi lúc: 13-12-2018 14:36