Anu and Meena are sisters. Anu is years younger than Meena. Can you write Anu's age in terms of Meenu's age? Take Meenu's age as years.
Given that, Anu and Meenu are sisters and Anu is years younger than Meenu.
Let be the age of Meenu.
So, Anu's age in terms of Meenu's age years