CBSE Class 10 Mathematics Sample Paper Set F

1. Find the number of integral value of x so that 2 ^2x2-7x+5

2 .A tower stands near an airport. The angle of elevation q of the tower from a point on the ground is such that its tangent is 5\ 12 . Find the height of the tower, if the distance of the observer from the tower is 120 metres.

3. A student observers the following spinner. What is the probability of obtaining the red colour.

4. Two radii of a circle are inclined at 130°. Tangents are drawn at the end points of the diameters formed from the radii to form a quadrilateral. Explain the special quadrilateral formed.

5. In a certain AP, the 32^nd term is twice the 12^th term. Prove that 70^th term is twice the 31^st term.

6. If the quadratic equation kx2−2kx+6=0 has equal roots, then find the value of k.

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