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Use Euclid's division algorithm , to fin...

Use Euclid's division algorithm , to find the H.C.F. of the following : (i) 70 and 40 `" "` (ii) 18 and 45

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NAGEEN PRAKASHAN ENGLISH-REAL NUMBERS-Exercise1 A
  1. Use Euclid's division algorithm , to find the H.C.F. of the following ...

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  2. If the HCF of 408 and 1032 is expressible in the form 1032\ m-408xx...

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  3. Express the H.C.F. of 18 and 24 in the form of 18x + 24y.

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  4. Express the H.C.F. of 30 and 36 in the form of 30x + 36y.

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  5. Find the largest number that divides 1989 and 967 and leaves a remaind...

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  6. Find the largest number that divides 189 and 249 leaving remainder 9 i...

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  7. Find the largest number that divides 280 and 1248 leaving remainders 4...

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  8. Find the greartest number that divides 699 and 572 leaving remainders...

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  9. Show that any positive odd integer is of the form 4q+1 or 4q+3 , wh...

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  10. Show that any positive integer is of the form 3q or, 3q+1 or, 3q+2 ...

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  11. Show that every even positive integer is of the form 6q or 6q + 2 or...

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  12. Prove that every positive integer different from 1 can be expressed as...

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  13. Show that the square of any positive integer is either of the form 4q ...

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  14. Show that the square of any positive integer cannot be of the form 5q+...

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  15. Prove that one and only out of n,(n+2) and (n+4) is divisible by 3, wh...

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  16. There are 576 boys and 448 girls in a school that are to be divided in...

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  17. The length, breadth and height of a room are 8m and 25cm, 6m and 75cm ...

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  18. A sweet seller has 420 kaju barfis and 130 badam barfis. She wants ...

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  19. about to only mathematics

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  20. In a group there are 21 childrens, 35 ladies and 49 gents. They all wa...

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