#### 11th Standard Maths English Medium Free Online Test One Mark Questions with Answer Key 2020 - Part Four

11th Standard

Reg.No. :
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Maths

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

10 x 1 = 10
1. If 3 is the logarithm of 343 then the base is

(a)

5

(b)

7

(c)

6

(d)

9

2. If the arcs of same lengths in two circles sustend central angles 30° and 40° find the ratio of their radii

(a)

3:4

(b)

4:3

(c)

7:12

(d)

none of these

3. The value of cos 20°-sin 20° is

(a)

positive

(b)

negative

(c)

0

(d)

1

4. If nC4,nC5,nC6 are in AP the value of n can be

(a)

14

(b)

11

(c)

9

(d)

5

5. Each of five questions is a multiple-choice test has 4 possible answers. The number of different sets of possible answers is

(a)

45-4

(b)

54-5

(c)

1024

(d)

1023

6. If the two straight lines x + (2k -7)y + 3 = 0 and 3kx + 9y - 5 = 0 are perpendicular then the value of k is

(a)

k=3

(b)

$k=\frac13$

(c)

$k=\frac23$

(d)

$k=\frac32$

7. If co-ordinate axes are the angle bisectors of the pair of lines ax2+2hxy+by2=0 then

(a)

a=b

(b)

h=0

(c)

a+b=0

(d)

a2+b2=0

8. The co-ordinates of a point on x+y+3=0 whose distance from x+2y+2=0 is $\sqrt 5$, is

(a)

(9,6)

(b)

(-9,6)

(c)

(6,-9)

(d)

(-9,-6)

9. If $|\overrightarrow{a}|=13,|\overrightarrow{b}|=5$  and $\overrightarrow{a}.\overrightarrow{b}=60^o$ then $|\overrightarrow{a}\times\overrightarrow{b}|$ is

(a)

15

(b)

35

(c)

45

(d)

25

10. A man has 3 fifty rupee notes, 4 hundred rupees notes, and 6 five hundred rupees notes in his pocket. If 2 notes are taken at random, what are the odds in favour of both notes being of hundred rupee denomination?

(a)

1:12

(b)

12:1

(c)

13:1

(d)

1:13