Question

Smith is twice as old as Johnson. If the sum of their ages is 42, how old is Smith?

Answer 1

Step-by-step explanation:

let the age of Johnson be x yrs

Smith's age be y yrs

as per question

y = 2x and

=>x+y =42

=>x+2x=42

=>3x=42

=>x=42/3

=>x=14

therefore Smith's age = 2 x 14 = 28 yrs

Answer 2

Answer:

Step-by-step explanation:

If Johnson age is x, then Smith age is 2x

x+2x=42

3x=42

x=14

then, smith age will be 2x14 = 28  year

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