CBSE Important Questions

Mathmatics Class X

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  1. The three angles will be

    (a) 200 ,400 ,1200

    (b) 300 ,600 ,900

    (c) 450 ,405 ,900

    (d) 1100 ,400 ,500

  2. If α and β are the zeroes of the polynomial then sum of their reciprocals is :

  1. is equal to

    (a) 2cosq

    (b) 2sinq

    (c) 0

    (d) 1

  2. The product of a non-zero rational and an irrational number is

    (a) always irrational

    (b) always rational

    (c) rational or irrational

    (d) one

  3. In ∆ABC and ∆DEF, if

    4. (a) ∆AABC ~ ∆ADEF

    (b) ∆AABC ~ ∆AEDF

    (c) ∆AABC ~ ∆AFED

    (d) ∆AABC ~ ∆AEFD

  1. is equal to

    (a) 3

    (b) 4

    (c) 8

    (d) 5

  2. L.C.M. of a and b, if ab=1050 and H.C.F. of a and b is 15, is

    (a) 60

    (b) 70

    (c) 80

    (d) 75

  3. If tan2A= cot( A - 18 0 ) , then the value of A is

    (a) 18 0

    (b) 36 0

    (c) 24 0

    (d) 27 0

  4. If the system of equations kx +15y = 0 and 3x + 5y = 0 has a non-zero solution, then

    (a) k = 0

    (b) k = 9

    (c) k ≠ 0

    (d) k = 15

  5. In fig. , if D is mid - point of BC, the value of

    6. (a) 2

    (b) ¼

    (c) 1/3

    (d) ½

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