#### 9th Standard Maths English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 10

9th Standard

Reg.No. :
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Maths

Time : 00:15:00 Hrs
Total Marks : 15

Part A

15 x 1 = 15
1. The shaded region in the venn diagram is

(a)

$A\cup B$

(b)

$A\cap B$

(c)

$\left( A\cap B \right) ^{ ' }$

(d)

$\left( A-B \right) \cup \left( B-A \right)$

2. Irrational number has a________________ .

(a)

terminating decimal

(b)

no decimal part

(c)

non-terminating and recurring decimal

(d)

non-terminating and non-recurring decimal

3. Which is the best example of a number written in scientific notation?

(a)

2.71 X 105

(b)

0.6 X 104

(c)

0.9871

(d)

125.4 X 104

4. Degree of the polynomial (y3–2)(y3 + 1) is

(a)

9

(b)

2

(c)

3

(d)

6

5. The polynomial whose factors are (x+2)(x+3)is_____

(a)

x+ 5x + 6

(b)

x- 4

(c)

x- 9

(d)

x+ 6x + 5

6. If (2,3) is a solution of linear equation 2x + 3y = k then, the value of k is

(a)

12

(b)

6

(c)

0

(d)

13

7. The point of concurrency of the medians of a triangle is known as __________

(a)

circumcentre

(b)

incentre

(c)

orthocentre

(d)

centroid

8. If one angle of a cyclic quadrilateral is 75° , then the opposite angle is

(a)

100°

(b)

105°

(c)

85°

(d)

90°

9. The point whose abscissa is 5 and lies on the x-axis is__________

(a)

(-5, 0)

(b)

(5,5)

(c)

(0,5)

(d)

(5,0)

10. In what ratio does the point Q(1,6) divide the line segment joining the points P(2,7) and R(−2,3)

(a)

1:2

(b)

2:1

(c)

1:3

(d)

3:1

11. For which set of numbers do the mean, median and mode all have the same values?

(a)

2,2,2,4

(b)

1,3,3,3,5

(c)

1,1,2,5,6

(d)

1,1,2,1,5

12. The mean of set of seven number is 81.If one of the nimbers is discarded,the mean of remaining number is 78.The value of discarded number is

(a)

101

(b)

100

(c)

99

(d)

98

13. The value of 3sin700sec200 + 2sin490sec510 is

(a)

2

(b)

3

(c)

5

(d)

6

14. The total surface area of a cuboid is

(a)

4a2 sq. units

(b)

6a2 sq. units

(c)

2(l + b)h sq. units

(d)

2(lb + bh + lh) sq. units

15. Which of the following cannot be taken as probability of an event?

(a)

0

(b)

0.5

(c)

1

(d)

-1