CBSE Important Questions

Mathmatics Class X

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  1. If d= HCF (48, 72) the value of d is:
    1. 24
    2. 48
    3. 12
    4. 72

  1. The decimal expansion of the rational number 11/2^3 5^2 will terminate after:
    1. One Decimal Place
    2. Two Decimal Place
    3. Three Decimal Place
    4. More than 3 Decimal Place

  1. If the HCF of 65 and 117 is expressible in the form 65 m - 117, then the values of m is:
    1. 4
    2. 2
    3. 3
    4. 1

  1. If d= LCM (36, 198), then the value of s is:
    1. 396
    2. 198
    3. 36
    4. 1

  1. In the adjoining factor tree, find the number m, n:
    1. 35/14
    2. 14/35
    3. 1/7
    4. 7/8

  1. If x- 23 x 3 x 52, y- 2 2 x 33 then IICF (x, y) is:
    1. 12
    2. 108
    3. 6
    4. 36

  1. Given that HCF (253, 440) = 11 and LCM (253, 440) = 253 x R. The value of R is:
    1. 400
    2. 40
    3. 440
    4. 253

  1. The rational number of decimal (0.6) - is:
    1. 33/50
    2. 2/3
    3. 111/167
    4. 1/3

  1. If two positive integer a and b are written as a = x2 y2and b = xy2; x,y are prime number then HCF (a, b) is:
    1. xy
    2. xy2
    3. x2 y3
    4. x2 y2

  1. Given that HCF (26, 91) = 13, then LCM (26, 91) is:
    1. 2344
    2. 182
    3. 91
    4. 364

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