Question

The length of a field exceeds the breadth by 3 m. If the perimeter of the field

is 42 m, find the length and breadth of the field.​

Answer 1

Answer:

An alkali is a substance that produces hydroxide ions, OH -(aq), when dissolved in water. (Higher tier) Strong acids completely ionise in water. They break up completely to produce a high concentration of hydrogen ions in the solution. ... hydrochloric acid.

Answer 2

Answer:

Given :-

Length of field is 3 m more than breadth

Perimeter of field = 42 m

To Find :-

Length and Breadth

Solution :-

$\mathfrak \red {\underline{ \dag \: As \: we \: know \: that}}$

$\sf \pink{Perimeter = 2(Length + Breadth)}$

Let the breadth be x

Hence, Length will be x + 3

$\tt \: 42 = 2(x + 3 + x)$

$\tt \: 42 = (2 \times x) + (2 \times 3) + (2 \times x)$

$\tt \: 42 = 2x + 6 + 2x$

$\tt \: 42 = 4x + 6$

$\tt \: 42 - 6 = 4x$

$\tt \: 36 = 4x$

$\tt \: x \: = \cancel \dfrac{36}{4}$

$\tt \: x \: = 9$

$\mathfrak \orange{Breadth = 9m}$

$\mathfrak \blue{Length = 9 + 3 = 12 \: m}$