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Montano1993 [528]
2 years ago
12

Please answer this question​

Mathematics
1 answer:
max2010maxim [7]2 years ago
4 0
<h3>━━━━━━❃━━━━━━</h3>

<h3>Part one :</h3>

As it is given :

Present age of mom : Present age of son = 6 : 1

Therefore let :

  • Mother's age be 6x

  • Son's age be x

<h3>Part two :</h3>

Ages after 10 year :

  • Mom's age = 6x + 10

  • Son's age = x + 10

<h3>Part three :</h3>

The ages after 10 years are given in rational of 8 : 3.

Which means :

Mom's age after 10 years : Son's age after 10 years = 8 :3.

Now :

\scriptsize \purple{ \boxed{ \scriptsize \dfrac{ \text{Mom's age after 10 years}}{ \text{son's age after 10 years}}= \dfrac{8}{3} }} \star

\\  \\

So :

\small\sf \dashrightarrow \dfrac{6x + 10}{x + 10} =  \sf \dfrac{8}{3}

\\  \\

\small\sf \dashrightarrow \dfrac{3(6x + 10)}{x + 10} =  \sf \dfrac{8}{1}

\\  \\

\small \sf \dashrightarrow \dfrac{18x +30}{x + 10} =  \sf \dfrac{8}{1}

\\  \\

\small\sf \dashrightarrow \dfrac{18x +30}{1} =  \sf \dfrac{8(x + 10)}{1}

\\  \\

\small \sf \dashrightarrow 18x +30=  \sf 8(x + 10)

\\  \\

\small\sf \dashrightarrow 18x +30=  \sf 8x + 80

\\  \\

\small\sf \dashrightarrow 18x - 8x +30=  \sf 80

\\  \\

\small \sf \dashrightarrow 10x +30=  \sf 80

\\  \\

\small \sf \dashrightarrow 10x =  \sf 80 - 30

\\  \\

\small \sf \dashrightarrow 10x =  \sf 50

\\  \\

\small \sf \dashrightarrow  \dfrac{10x}{10}  =  \sf  \dfrac{50}{10}

\\  \\

\small \sf \dashrightarrow  \dfrac{1\cancel0x}{1\cancel0}  =  \sf  \dfrac{5\cancel0}{1\cancel0}

\\  \\

\small\bf \dashrightarrow x = \pink 5

\\

<h3>Part four :</h3>

We know :

\footnotesize \hookrightarrow \sf Son's \: age = x

\footnotesize \hookrightarrow \sf Son's \: age =  \red{5 \: years}

\\  \\

\footnotesize \hookrightarrow \sf Mother's \: age  = 6x

\footnotesize\hookrightarrow \sf Mother's \: age  = 6 \times 5

\footnotesize \hookrightarrow \sf Mother's \: age  =  \bf \red{30 \: years}

<h3>━━━━━━❃━━━━━━</h3>

And all we are done ! ㋛

<h3>~\pmb{\cal W\frak{indy}M\frak{int}}༄</h3>
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