Question

Given:
Age of both is In ratio 5:7

To Assume:
Their Present Age

Formula Used:
\begin{gathered}( - )+ ( - ) = (+) \\ ( + ) + ( - ) = ( - ) \\ ( + ) + ( + ) = ( + ) \\ ( - ) + ( + ) = ( - )\end{gathered}
(−)+(−)=(+)
(+)+(−)=(−)
(+)+(+)=(+)
(−)+(+)=(−)
​


Solution:
Let the age of

Rahul be 5x
Haroon age 7x
Equation:
5x - 4 + 7x + 4 = 565x−4+7x+4=56

\color{crimson}{5x}5x - \color{hotpink}{4}4 + \color{crimson}{7x}7x + \color{hotpink}{4}4 = 56

12x + \color{hotpink}{8}8 =56

12x = \color{crimson}{56-8}56−8

\color{hotpink}{12}12 x=\color{hotpink}{48}48

X = \color{crimson}{48/12}48/12

X=\color{hotpink}{4}4

Age of Rahul=5x=5(4)= \color{hotpink}{20years}20years
Age of Haroon=7x=7(4)= \color{hotpink}{28years}28years
∴The Present age of Rahul is 20 And Haroon is 28.


Thanks @llKillerBaell​

Answer 1

Answer:

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