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Find the L.C.M. of  84, 90 and 120 by pr...

Find the L.C.M. of  84, 90 and 120 by prime factorization method.

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RD SHARMA-PLAYING WITH NUMBERS-All Questions
  1. A merchant has 120 litres of oil of one kind, 180 litres of another ...

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  2. Find the L.C.M. of 40, 36, and 126 by prime factorization method.

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  3. Find the L.C.M. of  84, 90 and 120 by prime factorization method.

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  4. Determine the L.C.M. of 624 and 936 by division method.

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  5. Find the L.C.M. of 112, 140 and 168 by division method.

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  6. Find the L.C.M. of 75, 250, 225 and 525 by division method.

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  7. Determine the L.C.M. of the numbers given below: 48, 60

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  8. Determine the L.C.M. of the numbers given below: 28, 36, 45, 60

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  9. Determine the lowest natural number which when divided by 16, 28, 4...

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  10. The students in a class can be divided into groups of 2, 3, 5 and 6...

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  11. Determine the two numbers nearest to 10000 which are exactly divisib...

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  12. Klik has a camera that takes film that allows 24 exposures, whereas...

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  13. A boy saves Rs. 4.65 daily. Find the least number of days in which ...

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  14. Find the greatest number of 6 digits exactly divisible by 24, 15 an...

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  15. Four bells toll at intervals of 4, 7, 12 and 84 seconds. The bells ...

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  16. What is the smallest number which when divided by 24, 36 and 54 giv...

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  17. What is the smallest number that both 33 and 39 divide leaving rema...

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  18. Find the least number that is divisible by all the numbers between ...

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  19. What is the smallest number that, when divided by 35, 56 and 91 lea...

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  20. In a school there are two sections - section A and section B of Cla...

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