4. यदि (P+Q) का 20% = (P-Q) का 50% ...
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4. यदि (P+Q) का 20% = (P-Q) का 50% हो, तो P: Q ज्ञात कीजिए। (1) 7: 8 (2) 7: 3 (3) 7:5 (4) 5: 7

11th - 12th Class
Maths
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4. ( (2) frac{20(P+Q)}{100}=frac{50}{100}(P-Q) ) ( Rightarrow frac{P+Q}{P-Q}=frac{5}{2} ) ( Rightarrow frac{2 P}{2 Q}=frac{5+2}{5-2} ) | योगान्तर निष्पति से] ( Rightarrow frac{P}{g}=frac{7}{3} )
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