A man age is 4 time of his son age. After 5
year, he will be 3 time as old as his son. Than
present age of man is 40 years
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Answer:
The present ages of son and father are 10 years and 40 years respectively.
Step-by-step explanation:
Given :
Man's age = 4 times the age of his son
After 5 years man will be = thrice the age of his son
To find :
Their present ages
Solution :
Let the present ages be -
Son as y
Father as 4y
Ages after 5 years -
Son = (y + 5)
Father = (4y + 5)
⇒ 4y + 5 = 3(y + 5)
⇒ 4y + 5 = 3y + 15
⇒ 4y - 3y = 15 - 5
⇒ y = 10
Son's present age = 10 years
★ Value of 4y
⇒ 4(10)
⇒ 40
Father's present age = 40 years
The present ages of son and father are 10 years and 40 years respectively.
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