XML : Figuring out xml values

Consider the XML file:

    <value>0.5</value>      <name lang="en">half dollar</name>    

    <value>0.25</value>      <name lang="en">quarter</name>    

What are the values of the following XPath expressions?

a.

/purse/coin[1]/value

b.

/purse/coin[2]/name

c.

/purse/coin[2]/name/@lang

d.

name(/purse/coin[2]/*[1])

e.

count(/purse/coin)

f.

count(/purse/coin[2]/name)