Question

Mr.Karikari is five times as old as Eric.In ten years time Mr.Karikari will be thrice as old as Eric. Find their present ages.

Answer 1

Answer:

Let the Present Age of Eric be n yrs.

★ Age of Mr. Karikari

↠ Mr. Karikari = Five times of Eric

↠ Mr. Karikari = 5 × n yrs

↠ Mr. Karikari = 5n yrs

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☯ After 10 Years :

⇴ Mr. Karikari = Thrice of Eric

⇴ (5n + 10) = 3 × (n + 10)

⇴ 5n + 10 = 3n + 30

⇴ 5n – 3n = 30 – 10

⇴ 2n = 20

• Dividing both term by 2

⇴ n = 10 yrs

━━━━━━━━━━━━━━━━━━━━━━━━

☯ PRESENT AGES :

⇢ Eric = n = 10 years

⇢ Mr. Karikari = 5n = 5(10) = 50 years

∴ Present Age of Eric and Mr. Karikari is 10 years and 50 years respectively.

Answer 2

AnswEr:-

Present age of Mr.Karikari = 50 years.

Present age of Eric = 10 years.

Step-by-step-explanation:-

Let present age of Eric be x years & present age of Mr.Karikari be 5x years.

According to question:-

↠ (5x + 10) = 3(x + 10)

↠ 5x + 10 = 3x + 30

↠ 5x - 3x = 30 - 10

↠ 2x = 20

↠ x = 20/2

↠ x = 10 years.

⋆ PRESENT AGES:-

➩ Age of Eric = x = 10 years.

➩ Age of Mr.Karikari= 5x=5(10)= 50 years.

∴ Present ages of Mr.Karikari & Eric are 50 & 10 years respectively.