CBSE Class 10 Mathematics Question Paper Solved 2021 Set D

SECTION-A

1. If P (E) = 0.05, what is the probability of ‘not E’?.

2. Find 30 th term of A.P 10,7,4...........

3. How many tangents can a circle have?

4. Find the area of the quadrant of a circle of radius 14 cm.

SECTION-B

5. Find the values of k for each of the following quadratic equations, so that they have two equal roots.

2x² + kx + 3 = 0

6. Write the common difference of an A.P whose nth term is 3n+5

7. A die is thrown once. Find the probability of getting

(i) a prime number

(ii)a number beween 2 and 6

8. One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting

(i) a king of red colour

(ii) a face card

9. AB and CD are respectively arcs of two concentric circles of radii 21 cm and 7 cm and centre O. If angle AOB = 30°, find the area of the shaded region.

10. Two cubes each of volume 64 cm3 are joined end to end. Find the surface area of the resulting cuboid.