| 1. | Find the H.C.F. of 120, 140, 180 and 420. |
| a. | | 15 |
| b. | | 20 |
| c. | | 25 |
| d. | | 30
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| 2. | Find the greatest number that will exactly divide 400 and 640. |
| a. | | 40 |
| b. | | 80 |
| c. | | 20 |
| d. | | 100
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| 3. | What is the smallest number which is exactly divisible by 24, 12, 60 and 56? |
| a. | | 420 |
| b. | | 840 |
| c. | | 1200 |
| d. | | 780
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| 4. | Find the greatest number which on dividing 304, 554 and 854 leaves equal remainder. |
| a. | | 35 |
| b. | | 65 |
| c. | | 50 |
| d. | | 60
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| 5. | In a school, distribute the 3003 pens and 2730 copies among the maximum number of students in such a way that each student get the same number of pens and copies: |
| a. | | 91 |
| b. | | 182 |
| c. | | 143 |
| d. | | 173
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| 6. | The H.C.F. of two numbers is 210 and their ratio is 15:22. Find the numbers? |
| a. | | 3150, 4620 |
| b. | | 2250, 3890 |
| c. | | 1820, 2600 |
| d. | | 4500, 2150
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| 7. | There are three iron pipes length of 77m, 91m and 119m have to be divided into pieces of same length. What is the greatest possible length of each piece? |
| a. | | 11m |
| b. | | 13m |
| c. | | 17m |
| d. | | 7m
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| 8. | Find the greatest number that will divide 378, 330 and 882 leaving remainders 3, 5 and 7 respectively. |
| a. | | 125 |
| b. | | 220 |
| c. | | 300 |
| d. | | 275
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| 9. | Find the least five digits which is exactly divisible by 32, 36, 60, 90 and 144. |
| a. | | 10200 |
| b. | | 10080 |
| c. | | 11250 |
| d. | | 13500
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| 10. | If the product of two numbers is 84942 and H.C.F. is 33, find their L.C.M.? |
| a. | | 2574 |
| b. | | 2250 |
| c. | | 3600 |
| d. | | 3450
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| 11. | Six bells tolling at the interval of 2, 4, 6, 8, 10, and 12 seconds respectively. In 30 minutes how many times they toll? |
| a. | | 4 |
| b. | | 10 |
| c. | | 15 |
| d. | | 16
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| 12. | Find the least number which is exactly divisible by 26, 45, 60 and 80. |
| a. | | 1440 |
| b. | | 850 |
| c. | | 720 |
| d. | | 900
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