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Question 1 |
Find the least common multiple of 12 and 80. |
A. | 280 | B. | 164 |
C. | 224 | D. | 240 |
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Question 2 |
Find the LCM of 9, 10 and 45. |
A. | 90 | B. | 60 |
C. | 54 | D. | 95 |
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Question 3 |
Find the LCM of 54 and 90. |
A. | 180 | B. | 270 |
C. | 216 | D. | 121 |
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Question 4 |
Find the LCM of 26 and 34. |
A. | 234 | B. | 446 |
C. | 442 | D. | 421 |
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Question 5 |
Jerry has a pack of cards. If he makes group of 3 cards or group of 8 cards or group of 12 cards, no card is left over. How many cards does he have in the pack?
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A. | 24 | B. | 12 |
C. | 16 | D. | 21 |
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Question 6 |
Paul has two mystery numbers in his mind. Their least common multiple is 45 and greatest common factor is 3. Which two numbers does he have in his mind? |
A. | 3 and 4 | B. | 9 and 15 |
C. | 9 and 18 | D. | 6 and 20 |
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Question 7 |
Find the LCM of 36 and 100. |
A. | 600 | B. | 180 |
C. | 90 | D. | 900 |
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Question 8 |
Find the least common multiple of 14, 21 and 32. |
A. | 124 | B. | 1,120 |
C. | 210 | D. | 672 |
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Question 9 |
Both Maria and Katrina are taking piano classes. Maria has piano class every 3rd day and Katrina has her class on every 5th day. Which is true about their classes? |
A. | They will both have a class on the 12th day. | B. | They will both have a class on the 18th day. |
C. | They will both have a class on the 15th day. | D. | They will never have a class on the same day. |
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Question 10 |
Find the LCM of 16, 25 and 40. |
A. | 150 | B. | 400 |
C. | 80 | D. | 300 |
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