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In each of the following numbers, replac...

In each of the following numbers, replace * by the smallest number to make it divisibly by 3: 75 * 5       (ii)   35 * 64          (iii)    18 * 71

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In each of the following numbers,replace * by the smallest number to make it divisibly by 9:67*19 (ii) 66784* (iii) 538*8

In each of the following numbers, replace * by the smallest number to make it divisibly by 11: 86 * 72 (ii) 467 * 91 (iii) 9 * 8071

In each of the following numbers, replace ** by the smallest number to make it divisible by 3 : (i) 27 **4 , (ii) 53** 46 , (iii) 8 **711 , (iv) 62 **35 , (v) 234**17 , (vi) 6**1054

In each of the following numbers, replace ** by the smallest number to make it divisible by 11 : (i) 26**5 , (ii) 39**43 , (iii) 86**72 , (iv) 467**91 , (v) 1723**4 , (vi) 9**8071

In each of the following numbers. Replace ** by the smallest number to make it divisible by 9 : (i) 65**5 , (ii) 2**135 , (iii) 6702** , (iv) 91**67 , (v) 6678**1 , (vi) 835**86

Which of the following number is divisible by 18?

Find the smallest number which is divisible by 18,15 and 12

RD SHARMA-PLAYING WITH NUMBERS-All Questions
  1. Test the divisibility of the following numbers by 9: 187245        ...

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  2. Test the divisibility of the following numbers by 11: 9020814       ...

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  3. In each of the following numbers, replace * by the smallest number ...

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  4. In each of the following numbers, replace * by the smallest number t...

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  5. In each of the following numbers, replace * by the smallest number ...

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  6. Given an example of a number which is divisible by 2 but not by 4  ...

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  7. Which of the following statements are true? If a number is divisible b...

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  8. Find the H.C.F. of 144 and 192 by prime factorization method.

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  9. Find the H.C.F. of 1260 and 2376 by prime factorization method.

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  10. Find the HCF and LCM of 144, 180 and 192 by prime factorisation method...

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  11. Find the H.C.F. of the following numbers using prime factorization m...

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  12. Find the H.C.F. of the following numbers using prime factorization m...

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  13. Find the H.C.F. of the following numbers using prime factorization m...

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  14. What is the HCF of two consecutive (a)  numbers?        (b) even nu...

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  15. H.C.F. of co-prime numbers 4 and 15 was found as follows: 4=2\ *\ 2\...

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  16. Using Euclid’s algorithm find the H.C.F. of 513 and 783

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  17. Euclid algorithm to find the H.C.F of 408 and 1032.

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  18. Determine the H.C.F. of 216 and 1176

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  19. Find the H.C.F. of 144, 180 and 192.

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  20. Find the H.C.F. of 624 and 936

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