1 .
Each of the base and the prependicular of a right angle is 1 cm. A shape is made after rotating it through its hypotenuse Then,What will be its volume ?
$\pi \over 6$
$\sqrt 3 \pi \over 6$
$\sqrt 2 \pi \over 5$
$\sqrt 2 \pi \over 6$

2 .
If each side of a regular tetrahedron is 12 cm, then the volume of the tetrahedron is ?
144 $\sqrt 2$ $cm^3$
75$\sqrt 2$ $cm^3$
8$\sqrt 2$ $cm^3$
12$\sqrt 2$ $cm^3$

3 .
The area of rhombus is termed as $x^ 2 \over z$ . If x is increased by 10% and z is decreased by 25%. Find the percentage increase in the area of rhombus ?
51.25%
62.35%
66.23%
72%

4 .
Area of regular hexagon with side 'a' is
$3 \sqrt 3 \over 4$$a^ 2$
$12 \over 2 \sqrt 3$ $a ^2$
$9 \over 2 \sqrt 3$ $a ^2$
$6 \over 2 \sqrt 3$ $a ^2$

5 .A watch company produces four different products. The sale of these products in lakhs during 2005 and 2010 are shown in The following bar diagram Study the graph and answer the question

The ratio of sales of stop watch in 2010 to the sale of table clock in 2005 is
6 : 19
7 : 6
19 : 6
7 : 19

6 .A watch company produces four different products. The sale of these products in lakhs during 2005 and 2010 are shown in The following bar diagram Study the graph and answer the question

The sales of table clock in 2005 was less than sales of wall clock in 2005 is nearly by
70.05%
69.05%
68.05%
62.05%

7 .A watch company produces four different products. The sale of these products in lakhs during 2005 and 2010 are shown in The following bar diagram Study the graph and answer the question

During the period 2005-2010, the minimum rate of increase in sales is in the product of
wrist watch
Table clock
stop watch
wall clock

8 .A watch company produces four different products. The sale of these products in lakhs during 2005 and 2010 are shown in The following bar diagram Study the graph and answer the question

The sales have increased by nearly 135% from 2005 to 2010 in the product of
Table clock
wrist watch
stop watch
wall clock

9 .The following bar diagram represents the result of students of class 10, of 4 years. Study the graph and answer the following

number of students of class 10 who appeared in exam of 2002
180
195
200
120

10 .The following bar diagram represents the result of students of class 10, of 4 years. Study the graph and answer the following

The percentage increase in first division in 2003 compare to 2002 is
12%
0%
10%
9%