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Three numbers are in the ratio 1:2:3 and...

Three numbers are in the ratio 1:2:3 and their HCF is 6, the numbers are 4, 8, 12        (b)  5, 10, 15   (c)   6, 12, 18    (d)   10, 20, 30

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RD SHARMA-PLAYING WITH NUMBERS-All Questions
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  3. Three numbers are in the ratio 1:2:3 and their HCF is 6, the number...

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  7. What smallest digit be written in the blank space of the number ......

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  9. Which of the following numbers is divisible by 11? 7138965      ...

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  10. Which of the following numbers is a perfect number? 12       (b)...

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  11. Which of the following numbers is not divisible by 4? 78536       ...

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  12. The smallest prime just greater than the HCF of 84 and 144 is 11   ...

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  15. Make a list of seven consecutive numbers, none of which is prime.

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  19. The length, breadth and height of a room are 1050 cm, 750cm and 425...

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