Jack's father is 4 times as old as jack. the sum of their ages is no less than 55. what is the youngest age that jack could be? a.11 b.12 c.44 d.48

Age of jack is 11 years.

Option - a

SOLUTION:

Given that, Jack's father is 4 times as old as Jack.  

To find: youngest age that Jack could be.

The sum of their ages is no less than 55.  

Let the age of jack be n years, then his father’s age will be 4n years.

Now, we are given that, sum of ages

Important Statements and Equations for "Problems based on Ages":

If the present age is y, then n times the present age If the present age is x, then age n years later/hence If the present age is x, then age n years ago The ages in a ratio a: b will be ax and bxIf the current age is y, then 1/n of the age is

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