1.

The breadth of a rectangular garden is (2/3)rd of its length. If its perimeter is 40 m, find its dimensions.​

Answer»

♡Question :

The breadth of a rectangular garden is (2/3)rd of its length. If its PERIMETER is 40 m, find its dimensions.

♡ Answer :

\bf\purple{Given:}

  • breadth of a rectangular garden is \dfrac{2}{3} of its length.

  • Perimeter is 40 m

\bf\purple{To find :}

  • It's dimensions ?

Explanation :

  • Let the length be x .

Perimeter of rectangle = 2 × ( l + B )

\bf\longrightarrow{40 = 2\times ( x + \dfrac{2x}{3})}

\bf\longrightarrow{40 = 2\times (  \dfrac{3x + 2x}{3})}

\bf\longrightarrow{40 = 2\times (  \dfrac{5x}{3})}

\bf\longrightarrow{40 = \dfrac{10x}{3}}

\bf\longrightarrow{40\times 3 = 10x}

\bf\longrightarrow{120 = 10x}

\bf\longrightarrow{x = \dfrac{120}{10}}

\bf\longrightarrow{x = 12}

  • The length is 12 m.

  • The breadth is \dfrac{2x}{3}

\bf\longrightarrow{\dfrac{2\times 12}{3}}

\bf\longrightarrow{\dfrac{24}{3}}

\bf\longrightarrow{8}

  • Therefore the breadth is 8 m


Discussion

No Comment Found

Related InterviewSolutions