P₁/P₂ = L₁/L₂ ;P₁/P₂ =2/3 ; *** P₁ =2k ; P₂=3k ; P₁ +P₂ =25 ⇒ 2k+3 k =25⇔ k =25/(2+3) =5 ***P₁/P₂+1 =2/3+1 ;(P₁+P₂)/P₂ =(2+3)/3 ; *** 25/P₂ =5/3***25/P₂ =(2+3)/3 ;P₂ =(25/(2+3)) *3 ;P₂ =15 .P₁ =25 -15 =10.***********************************P₁ =(25/(2+3)) *2 = (25/5) *2 ;P₂ =(25/(2+3)) *3 = (25/5) *2 .-------------------------------------------