00:20:57 NCERT Exercise 3.6 Question 1 part (viii)

00:28:27 NCERT Optional Exercise 3.7 Question 1 The ages of two friends Ani and Biju differ by 3 years. Ani’s father Dharam is twice as old as Ani and Biju is twice as old as his sister Cathy. The ages of Cathy and Dharam differ by 30 years. Find the ages of Ani and Biju.