CBSE Class 10 Mathematics Sample Paper 2011 Set 12

SECTION A

1. Value of K for which sum of the roots of the equation 3x² – (3x -2)x – (k-6)=0 is equal to the product of its roots then

a) 1

b) -1

c) 0

d) 2

2. The perimeter of the triangle formed by the points (0,0) , (1,0) , (0,1) is

a) 1 +√2

b) √2 +1

c) 3

d) 2 +√2 

3. The probability of guessing the correct answer to certain question is P/12 , if the probability of not guessing the correct answer to the same question is ¾ then the value of P is

a) 4

b)2

c) 3

d) 1 

4. If p( -1,1) is the midpoint of the line segment joining A (-3 , 6) and B (1, b+4) , then b is

a) 1

b) -1

c) 2

d) 0 

5. The area of two circle are in the ratio 4 : 9 , the ratio of their circumference is

a) 2 :3

b) 3 :2

c) 4 :9

d) 9:4 

6. The no. of two digits that are divisible by 6 is

a) 12

b) 16

c) 15

d) 18 

7. The angle of depression of an object from a 60m high tower is 30°. The distance of the object from the tower is

a) 20√3 m

b) 60√3 m

c) 40√3m

d) 120m 

8. A solid metal cone with radius of base 12 cm and height 24 cm is melted to form solid spherical balls of diameter 6 cm each. The no of balls formed is

a) 16

b) 24

c) 32

d) 28

Please click the link below to download full pdf file for CBSE Class 10 Mathematics Sample Paper 2011 Set L