Try the following conversions. (i) (514) base 8 = ? base 10 (ii) (220) base 8 = ? base 2 (iii) (76F) base 16 = ? base 10 (iv) (4D9) base 16 = ? base 10 (v) (11001010) base 2 = ? base 10 (vi) (1010111) base 2 = ? base 10

Write a program to calculate in how many days a work will be completed by three persons A, B and C together. A, B, C take $\mathrm{x}$ days, $\mathrm{y}$ days and $\mathrm{z}$ days respectively to do the job alone. The formula to calculate the number of days if they work together is $\mathrm{xyz} /(\mathrm{xy}+\mathrm{yz}+\mathrm{xz})$ days where $\mathrm{x}, \mathrm{y}$, and $\mathrm{z}$ are given as input to the program.

Create a menu driven program using user defined functions to implement a calculator that performs the following:

a) Basic arithmetic operations(+,-,*,/)

b) $\log _{10}(\mathrm{x}), \sin (\mathrm{x}), \cos (\mathrm{x})$

The IUPAC name for "1,2-dibromo-3-chloropropane" in Hindi is:

• [1,2-\text{डिब्रोमो}-3-\text{क्लोरोप्रोपेन}]

In English:

1,2-dibromo-3-chloropropane

The following is an excerpt from the Mahabharata, in which Yudhisthira, the eldest Pandava, speaks to Sanjaya, a messenger:

Sanjaya, convey my respectful greetings to all the Brahmanas and the chief priest of the house of Dhritarashtra. I bow respectfully to teacher Drona … I hold the feet of our preceptor Kripa … (and) the chief of the Kurus, the great Bhishma. I bow respectfully to the old king (Dhritarashtra). I greet and ask after the health of his son Duryodhana and his younger brother ... Also greet all the young Kuru warriors who are our brothers, sons and grandsons … Greet above all him, who is to us like father and mother, the wise Vidura (born of a slave woman) ... I bow to the elderly ladies who are known as our mothers. To those who are our wives you say this, “I hope they are well-protected”… Our daughters-inlaw born of good families and mothers of children greet on my behalf. Embrace for me those who are our daughters … The beautiful, fragrant, well-dressed courtesans of ours you should also greet. Greet the slave women and their children, greet the aged, the maimed (and) the helpless …

Try and identify the criteria used to make this list – in terms of age, gender, kinship ties. Are there any other criteria? For each category, explain why they are placed in a particular position in the list.

Explain catching exceptions using try and except block.