Instructions

For the following questions answer them individually

Question 51

In Mendeleevâ€™s periodic table, the properties of the elements are considered a periodic

function of their:

Question 52

In the circle above, chord $\overline{AB}$ is extended to meet the tangent $\overline{DE}$ at D. If $\overline{AB}=12\ cm$ and $\overline{DE}=8\ cm$, find the length of $\overline{BD}$

In the circle above, chord $\overline{AB}$ is extended to meet the tangent $\overline{DE}$ at D. If $\overline{AB}=12\ cm$ and $\overline{DE}=8\ cm$, find the length of $\overline{BD}$

Question 55

Umar and Avinash started a partnership with investments of â‚¹ 10,000 and â‚¹ 15,000, respectively but due to a financial emergency the latter had to withdraw his investment after 8 months. In whatratio should the profit of the first twelve months be shared among the duo?

Question 57

Consider the given argument and decide which of the given assumptions is/are implicit in the argument.**Argument:**

The campaign of â€˜Swachh Bharatâ€™, keep your cities clean, started by the apartment association didnâ€™t bring much response from its residents.**Assumptions:**

1. Residents do not wish to keep their apartment clean.

2. The association had failed in the campaign.

Question 59

At 9.5% simple interest per annum a sum of money became â‚¹ 942 in 6 years. The sum initially invested was: