CBSE Important Questions

Mathmatics Class X

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  1. According to Euclid's division algorithms HCF of any two positive integers a and b with a > b is obtained by applying Euclid's division lemma to a and b to find q and r such that a = bq + r where r must satisfy.
    1. 1 < r < b
    2. 0 < r < b
    3. 0 < = r < b
    4. 0 < r <=b

  1. The decimal expansion of 141 / 120 will terminate after how many places of decimals?
    1. 1
    2. 2
    3. 3
    4. Will not terminate

  1. The decimal expansion of 131 / 120 will terminate after how many places od decimal?
    1. 1
    2. 2
    3. 3
    4. Will not terminate

  1. According to Euclid's division algorithm using Euclid's division lemma for two positive integer a and b with a > b enables us to find:
    1. HCF
    2. LCM
    3. Decimal expansion
    4. Probability

  1. The decimal expansion of 6 / 1250 will terminate after how many places of decimal?
    1. 1
    2. 2
    3. 3
    4. 4

  1. For some integer m, every even integer is of form
    1. m
    2. m + 1
    3. 2m
    4. 2m + 1

  1. For some integer q, every odd integer is of the form
    1. q
    2. q + 1
    3. 2q
    4. 2q + 1

  1. If two positive integer a and b are written as

    2. a = x3 y2 and b = xy3 , x, y are prime numbers, then HCF (a, b) is

    1. xy
    2. xy2
    3. x3 y3
    4. x2 y2

  1. If two positive integer p and q can be expresses as

    2. P = ab2 and q = a3b, a, b being prime numbers, then LCM (p, q) is:
    1. ab
    2. a2 b2
    3. a3 b2
    4. a3 b3

  1. The product of a non- zero rational and an irrational number is:
    1. Always irrational
    2. Always rational
    3. Always or irrational
    4. One

  1. The decimal expansion of the rational number 14587 / 1250 will terminate after:
    1. One decimal
    2. Two decimal
    3. Three decimal
    4. Four decimal
Submitted By: Mr.Janak Raj Kalia
Email Id: [email protected]
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