National Sovereignty is the condition of a nation that has self-rule, a stable government and the right to exist without interference from other nations.
Whereas
Demilitarization is the process of reducing and even eliminating the armed forces of a nation.
Rakhi got engaged 10 years ago. Rakhi's present age is 5/3 of her age at the time of engagement. If the present age of Rakhi's mother is twice that ofpresent age of Rakhi, then what was her mother's age (in years) at the time of her engagement?