Recommended Content

Question 3 :
What is the angle subtended by 1 m pole at a distance 1 km on the ground in sexagesimal measure ?

Question 4 :
The shadow of a tower of height $(1+\sqrt { 3 } )$ m standing on the ground is found to be 2 m longer when the sun's elevation is $30^0$, then when the sun's elevation was

Question 5 :
The length of a shadow of a vertical tower is $\dfrac{1}{\sqrt{3}}$ times its height. The angle of elevation of the sun is:

Question 6 :
The mode of the following series is 36. Find the missing frequency in it<br/><table class="wysiwyg-table"><tbody><tr><td>Class interval</td><td>0-10</td><td>10-20</td><td>20-30</td><td>30-40</td><td>40-50</td><td>50-60</td><td>60-70</td></tr><tr><td>Frequency</td><td>8</td><td>10</td><td>......</td><td>16</td><td>12</td><td>6</td><td>7</td></tr></tbody></table>

Question 7 :
Consider the following data:<br><table class="wysiwyg-table"><tbody><tr><td>$X$</td><td>$1$</td><td>$2$</td><td>$3$</td><td>$4$</td><td>$5$</td></tr><tr><td>$f$</td><td>$3$</td><td>$5$</td><td>$9$</td><td>-</td><td>$2$</td></tr></tbody></table>The arithmetic mean of the above distribution is $2.96$. What is the missing frequency?