CBSE Important Questions

Mathmatics Class X

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  1. If a , b are the zeros of the polynomial

  1. The HCF of the smallest composite number and the smallest prime number.

    (a) 1

    (b) 2

    (c) 4

    (d) none of these

  2. If then find the value of λ is

    3. (a) 0

    (b) cos2 θ

    (c) 1

    (d) -1

  1. If p, q are two co- prime numbers. HCF (p, q) is :

    (a) p

    (b) q

    (c) pq

    (d) 1

    3. (a) 1

    (b) - 1

    (c) 2

    (d) 0

  1. If 29x + 37 y = 103 and 37x + 29y = 95, then :

    2. (a) x = 1, y = 2

    (b) x = 2, y = 1

    (c) x = 2, y = 3

    (d) x = 3, y = 2

  1. Square of any positive integer is of the form.

    (a) 3q +1

    (b) 3q

    (c) both a and b

    (d) none

  2. If ∆PQR is right angled at R, then the value of cos (P+Q) is

    3. (a) 1

    (b) 0

    (c) ½

    (d)

  1. 1192 −1112 is

    (a) prime number

    (b) composite

    (c) an odd prime number

    (d) an odd composite number

  2. The empirical relationship among the Median, Mode and Mean of a data is :

    (a) mode = 3 median + 2 mean

    (b) mode = 3 median - 2 mean

    (c) mode = 3 mean - 2 median

    (d) mode = 3 mean + 2 median

Submitted By: Mr. Agyat Gupta
Email Id: [email protected]
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