Sum of ages of Anu and Bhanu is 10 years more than the sum of ages of Bhanu, Chanu, and Dhanu. The average age of Chanu and Dhanu is 19 years. Find the average age of Anu and Dhanu if Dhanu is 10 years elder than Chanu.

Average Age of Anu and Dhanu

Let the ages be:
Anu = \(A\), Bhanu = \(B\), Chanu = \(C\), Dhanu = \(D\)

Given:
1) \(A + B = 10 + B + C + D \Rightarrow A = 10 + C + D\)
2) Average age of Chanu and Dhanu = 19
\(\Rightarrow \frac{C + D}{2} = 19 \Rightarrow C + D = 38\)
3) Dhanu is 10 years elder than Chanu:
\(D = C + 10\)

Substitute \(D\) in \(C + D = 38\):
\[ C + (C + 10) = 38 \Rightarrow 2C = 28 \Rightarrow C = 14 \] \[ D = 14 + 10 = 24 \]

Now, \(A = 10 + C + D = 10 + 14 + 24 = 48\)

Average age of Anu and Dhanu:
\[ \frac{A + D}{2} = \frac{48 + 24}{2} = \frac{72}{2} = 36 \]

Answer: The average age of Anu and Dhanu is 36 years.