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Even numbers are formed by taking at lea...

Even numbers are formed by taking at least two at a time from the numbers `0, 4, 8, 9`. Their H.C.F. is (a) 2       (b) 4          (c) 10      (d) None of these

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RS AGGARWAL-HCF AND LCM OF NUMBERS-All Questions
  1. H.C.F. of 4xx27xx3125 ,\ \ 8xx9xx25xx7 & 16xx81xx5xx11xx49 is (a) 1...

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  2. Find the highest common factor of 36 and 84. (a) 4         (b) 6      ...

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  3. Even numbers are formed by taking at least two at a time from the numb...

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  4. The H.C.F. of 204, 1190 and 1445 is (a) 17       (b) 18       (c) 1...

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  5. Which of the following is a pair of co-primes? (a) (16, 62)     ...

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  6. The H.C.F. of 2923 and 3239 is (a) 37       (b) 47       (c) 73    ...

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  7. The H.C.F. of 3556 and 3444 is (a) 23         (b) 25        (c) 26 ...

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  8. The L.C.M. of 2^3xx3^2xx5xx11 ,\ \ 2^4xx3^4xx5^2xx7 and 2^5xx3^3xx5...

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  9. Find the lowest common multiple of 24, 36 and 40. (a) 120    (b)...

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  10. The L.C.M. of 22, 54, 108, 135 and 198 is (a) 330     (b) 1980  ...

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  11. The L.C.M. of 148 and 185 is (a) 680      (b) 740    (c) 2960   ...

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  12. The H.C.F. of a/b , c/d , e/f is equal to (a) (LCM of \ a ,\ c ,\ e)/(...

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  13. The HCF of 2/3, 8/9, 64/81 and 10/27 is...

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  14. The H.C.F. of 9/(10),(12)/(25),(18)/(35) and (21)/(40) is 3/5 (b) (...

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  15. The L.C.M. of 1/3,5/6,2/9,4/(27) is 1/(54) (b) (10)/(27) (c) (20)/3...

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  16. The L.C.M. of 2/3,3/5,4/7,9/(13) is (a) 36 (b) 1/(36) (c) 1/(1365) ...

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  17. The L.C.M. of 3/4,6/7,9/8 is (a) 3 (b) 6 (c) 9 (d) 18

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  18. The H.C.F. of 1.75, 5.6 and 7 is (a) 0.07       (b) 0.7       (c...

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  19. The G.C.D. of 1.08, 0.36 and 0.9 is (a) 0.03     (b) 0.9      (c...

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  20. The H.C.F. of 0.54, 1.8 and 7.2 is (a) 1.8       (b) 0.18       ...

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