Question

solve it quickly.........​

Answer 1

According to the question

Let b be the breadth

length = b + 3

If length and breadth increased by 2cm new area is 70 sq cm more

$i.e., b(b+3)+70=(b+2)(b+5) \\ \\ </p><p></p><p>b2+3b+70=b2+2b+5b+10 \\ \\ </p><p></p><p>4b=60 \\ \\ </p><p></p><p>b=15 \\ \\ </p><p></p><p>l=15+3=18.</p><p></p><p>$

Answer 2

$\huge \bigstar \mathtt { \underline{ \red{A}{ \pink{n}{ \green{s}{ \purple{w}{ \blue{e}{ \orange{r}}}}}}}}$

• $\sf { \red{let \: grand \: daughter’s \: age \: be \: = x}}$

As per question

Grandfather’s age ≈ Grand daughter's age+54

• ${ \blue{10x = x + 54}}$
• $\green{9x = 54}$
• $\orange{x = 6}$

Grand daughter’s age = 6 year.