#### 9th Standard Science English Medium Free Online Test Creative 1 Mark Questions Part - Three

9th Standard

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Maths

Time : 00:10:00 Hrs
Total Marks : 10

Part A

10 x 1 = 10
1. The set (A - B) U(B - A) is ___________

(a)

AΔB

(b)

AUB

(c)

A∩B

(d)

A'UB'

2. If $\frac { 1 }{ 7 }$= 0.142857, then the value of is______________.

(a)

0.285741

(b)

0.428571

(c)

0.285714

(d)

0.574128

3. $\sqrt [ 5 ]{ 21 } \times 6\sqrt { 10 }$

(a)

$30\sqrt { 210 }$

(b)

30

(c)

$\sqrt { 210 }$

(d)

$210\sqrt { 30 }$

4. if a polynominal p(x) is divided by (ax+b), then the reminder is _______________________

(a)

$p\left( \frac { b }{ a } \right)$

(b)

$p\left( -\frac { b }{ a } \right)$

(c)

$p\left( \frac { a }{ b } \right)$

(d)

$p\left( -\frac { a }{ b } \right)$

5. (a-b-c)2 is equal to________

(a)

(a+b+c)2

(b)

(a+b+c)2

(c)

(-a + b + c)2

(d)

(a+b+c)2

6. Which of the following is a formula to find the sum of interior angles of a quadrilateral of n-sides?

(a)

$\frac { n }{ 2 }$ x 180

(b)

$\left( \frac { n+1 }{ 2 } \right)$1800

(c)

$\left( \frac { n-1 }{ 2 } \right)$1800

(d)

(n-2)1800

7. If the length of a chord decreases, then its distance from the centre__________

(a)

Increases

(b)

decreases

(c)

same

(d)

cannot say

8. 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)

9. The centre of a circle is (0, 0). One end point of a diameter is (5, -1), then ______________

(a)

$\sqrt{24}$

(b)

$\sqrt{37}$

(c)

$\sqrt{26}$

(d)

$\sqrt{17}$

10. If the mean of five observations x,x+2,x+4,x+6,x+8, is 11, then the mean of first three observations is

(a)

9

(b)

11

(c)

13

(d)

15