... When your teacher gives the signal, begin working on the **problems**. I I nt n te er rn na at t io i on n al a l M Ma at t he h em ma at ti ic cs s A A ss s se es ss sm me en n ts t s f fo or r S Sc ch ho oo ol ls s ...

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... Record your answers on the reverse side of the Answer Sheet (not on the question paper) by FULLY filling in the circles which correspond to your choices.. Your Answer Sheet will be read[r] ...

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... When your teacher gives the signal, begin working on the **problems**. I I nt n te er rn na at t io i on n al a l M Ma at t he h em ma at ti i cs c s A A ss s se es ss sm me en n ts t s f fo or r S Sc ch ho oo ol ls s ...

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... Record your answers on the reverse side of the Answer Sheet (not on the question paper) by FULLY filling in the circles which correspond to your choices.. Your Answer Sheet will be read[r] ...

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... （A）20 （B）31 （C）42 （D）53 （E）64 19. In an election between four candidates, they are supported respectively by 11, 12, 13 and 14 of the **first** 50 voters. Six more votes are to be cast, each for one of the four ...

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... Do not open the contest booklet until you are told to do so. Be sure that your name and code are written on the space provided above. **Round** 2 of **IMAS** is composed of three parts; the total score is 100 ...

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... If 2 and 8 are both to the right of 4, the sequence partially looks like 4ab2c8, where 1 must be a. If 4 is the **first** from the left, then the sequence looks like 41b2c8de, 3 and 6 must be at b, d, two choices for ...

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... 22. How many ways can we divide 6 students into 3 groups so that each group has exactly 2 students? 23. In the figure below, ABCD, EFGH and AJKL are squares. The area of AJKL is **2018** cm 2 . If rectangles EFCI and ...

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... Questions 21-25, 6 marks each 21. Mike constructs a sequence in the following way: the **first** two terms are 1 and 2. Starting from the third term, each term is the smallest possible integer that is not relatively ...

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... z Do not open the contest booklet until you are told to do so. z Be sure that your name and code are written on the space provided above. z **Round** 2 of **IMAS** is composed of three parts; the total score is 100 ...

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... Do not open the contest booklet until you are told to do so. Be sure that your name and code are written on the space provided above. **Round** 2 of **IMAS** is composed of three parts; the total score is 100 ...

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... Do not open the contest booklet until you are told to do so. Be sure that your name and code are written on the space provided above. **Round** 2 of **IMAS** is composed of three parts; the total score is 100 ...

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... z Do not open the contest booklet until you are told to do so. z Be sure that your name and code are written on the space provided above. z **Round** 2 of **IMAS** is composed of three parts; the total score is 100 ...

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... 3 2 5 2 2016 − 2016 = 2016 (2016 × − = 1) 2015 2016 2017 × × = × × × × × × 2 3 5 7 13 31 2017 , so the prime factors of the positive integer which satisfy the conditions should be 11, 17, 19, …, 29, 37, …, 2011, 2027, …. ...

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... （A）12 （B）18 （C）24 （D）30 （E）36 【Solution 1】 From the given information, one student will participate in two events and each of other two students participate on exactly one event. Let the student (the one will participate ...

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... the **first** row, it follows that the difference of the sum of three numbers in the second row and the sum of three numbers in the **first** row equal the sum of three numbers in the **first** row, that is; the ...

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... Subtracting this from the total surface area of the individual cubes, we have 14 6 42 42 . Answer： （C） 19. In an election between four candidates, they are supported respectively by 11, 12, 13 and 14 of the ...

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... Record your answers on the reverse side of the Answer Sheet (not on the question paper) by FULLY filling in the circles which correspond to your choices.. Your Answer Sheet will be read[r] ...

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... 14. There are two routes starting in a bus stop. A bus departs for the **first** route every 8 minutes and departs the second route every 10 minutes. At 6:00 in the morning, two buses depart for the two routes at the ...

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