यदि 550 का x% = 300 का y% तथा 200 का y% का x% = 60 हो तो x = ? - - Yadi 550 Ka x% = 300 Ka y% Tatha 200 Ka y% Ka x% = 60 Ho To x = ? Maths in hindi, percentage 20√2 question answers in hindi pdf 15√2 questions in hindi, Know About 10√2 Maths online test Maths notes in hindi quiz book 30√2