Kenny is 3 times older than Bob. In P years Kenny will be twice older than Bob will be Q years later. If X denotes Kenny’s age, Which of the following represents kenny’s age compared to Bob’s? a) X + P = 6X (P + Q) b) 2 (X + P)= 3X +Q c) (X+P)/2 = (X/3) +P+Q d) 3(X+P+Q)= 2X e) 3x = 2(P+Q)

Kenny is 3 times older than Bob. In P years Kenny will be twice older than Bob will be Q years later. If X denotes Kenny’s age, Which of the following represents kenny’s age compared to Bob’s? If X denotes Kenny’s age and if B denoted Bob's age Kenny is 3 times older than Bob - X = 3B In P years Kenny will be twice older than Bob will be Q years later => X+P = 2(B+Q) Implies 3B + P = 2B + 2Q Implies B = 2Q - P Kenny's age = X = 3B = 6Q - 3P a)X + P = 6X (P + Q) - Nopes b)2 (X + P)= 3X +Q => X = 2P - Q - Nopes c) _ Don't know d)3(X+P+Q)= 2X => X = -3(P+Q) - Nopes e)3X = 2(P+Q) => X = (2/3)(P+Q) - Nopes The correct answer should be C provided the option reads (X+P)/2 = X/3 + P + Q. and not as mentioned above !

The correct answer gvn is (X+P)/2=(X/3)+P+Q, and i am not getting this answer neelgandham wrote:Kenny is 3 times older than Bob. In P years Kenny will be twice older than Bob will be Q years later. If X denotes Kenny’s age, Which of the following represents kenny’s age compared to Bob’s? If X denotes Kenny’s age and if B denoted Bob's age Kenny is 3 times older than Bob - X = 3B In P years Kenny will be twice older than Bob will be Q years later => X+P = 2(B+Q) Implies 3B + P = 2B + 2Q Implies B = 2Q - P Kenny's age = X = 3B = 6Q - 3P a)X + P = 6X (P + Q) - Nopes b)2 (X + P)= 3X +Q => X = 2P - Q - Nopes c) _ Don't know d)3(X+P+Q)= 2X => X = -3(P+Q) - Nopes e)3X = 2(P+Q) => X = (2/3)(P+Q) - Nopes The correct answer should be C provided the option reads (X+P)/2 = X/3 + P + Q. and not as mentioned above !

Ans: c My understanding: Kenny (X) is 3 times older than Bob(B) X=3B….Equation (1) In P years Kenny will be (X+P) twice older than Bob (B+P) will be Q years later (B+P+Q) (X+P)=2(B+P+Q)…. Equation (2) Substitute equation (1) in equation (2) (X+P)/2 =(X/3)+(P+Q)