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Five years hence ,the age of …

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Five years hence ,the age of jacob will , be three times that of his son.five years ago,J acobs age was seven times that of his son What are their present ages?
  • 4 answers

Yogita Ingle 5 years, 6 months ago

Let son's age be x.

Son's age after 5 years.
x + 5

So,
According to given condition ,
Jacobs age = 3(x+5) = 3x+15

His present age = 3x +15 - 5
= 3x+10 ....................... (1)

Five years ago....

Son's age = x - 5
According to the given condition,

Jacobs age = 7(x - 5)
Jacobs age = 7x - 35

His present age = 7x - 35 + 5 = 7x - 30 . . . . . . . .. . . . . . (2)

from(1)  and  (2)

3x + 10 = 7x - 30

10 + 30 = 7x - 3x

40 = 4x

{tex}x = \frac{40}{4}{/tex}

x = 10

So,
His sons present age is 10years.

Present age of Jacob=
3x + 10 ...............................from(1)
3(10)+10 = 30 + 10 = 40years.

Śěřãj The Cute? 5 years, 6 months ago

Paa nahi hoga use

?Chinu? Nadar 5 years, 6 months ago

Abe yr ye toh ncert ka question h 3rd chapter ka isska solution my cbse app mai bhi h

Śěřãj The Cute? 5 years, 6 months ago

Jaikab age 40 and his son age 10
http://mycbseguide.com/examin8/

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