1 .
If xya= $(3x+ y)^ 2$ - $(3x- y)^ 2$ , then the value of a is
12
6
0
18

2 .
Angle of a sector in a pie chart is equal to
$Value\,\,\, of \,\,\,the \,\,\,sector \over Total \,\,\,value \,\,\,of \,\,\,the \,\,\,data$ $\times$ 180°
$Value\,\,\, of \,\,\,the \,\,\,sector \over Total \,\,\,value \,\,\,of \,\,\,the \,\,\,data$ $\times$ 360°
$Value\,\,\, of \,\,\,the \,\,\,sector \over Total \,\,\,value \,\,\,of \,\,\,the \,\,\,data$ $\times$ 100°
None of the above

3 .Study the histogram of wage distribution of different number of workers and anwer the questions based on it
The percent age of worke rs who earn between Rs. 950 to Rs. 960 is -
17.6%
13.25%
25.5%
20.4%

4 .Study the histogram of wage distribution of different number of workers and anwer the questions based on it
Number of workers who earn more than Rs. 950 is
26
16
40
31

5 .Study the histogram of wage distribution of different number of workers and anwer the questions based on it
Number of workers who earn less than Rs. 950 is
16
31
23
26

6 .Study the histogram of wage distribution of different number of workers and anwer the questions based on it
Total number of workers surveyed is
49
39
44
40

7 .Study the histogram of wage distribution of different number of workers and anwer the questions based on it
The no.of workers earning more than Rs. 940 but less than Rs. 960 is
23
26
15
16

8 .
If 45% of A = $3\over 5$ of B, then A : B is
7 : 20
20 : 7
4 : 3
3 : 4

9 .
If tan 3$\theta$ . tan 6$\theta$ = 1, then find the value of tan 3$\theta$
$1 \over \sqrt3$
$\sqrt 3$
0
1

10 .
If tan (x - y).tan (x + y) = 1, then find the value of tan $4x \over 3$
1
$\sqrt 3$
$1 \over \sqrt3$
$2 \over \sqrt3$