Question

The length and breadth of a field are in the ratio 5:3. If breadth of the field is 42 m, then it's length is: *

1 point

100m

80m

50m

70m

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Answer 1

Answer:

70 m is the solution.

Step-by-step explanation:

Given :

• The breadth of the rectangle is 42 cm.

To find :

• The length of the field.

Let 5x & 3x meters be the length and the breadth of the field area respectively.

Finding x :

3x = 42

⇒x = 42/3 [ .°. Transposition method ]

⇒x = 14

.°. x = 14 m

Finding Length :

5x

→ 5 × 14

→ 70

.°. The length is 70 m.

Hence, the length of the field area is 70 m.

Answer 2

Answer:

Given :-

• The length and breadth of a field are in the ratio of 5:3.
• Breadth of a field is 42 m.

To Find :-

• What is the length of a field.

Solution :-

Let, the length of a field be 5x

And, the breadth of a field be 3x

According to the question,

⇒ 3x = 42

⇒ x = $\sf\dfrac{\cancel{42}}{\cancel{3}}$

➠ x = 14 m

Hence, the required length of a field is,

⇒ 5x

⇒ 5 × 14

➥ 70 m

$\therefore$ The length of a field is 70 m . Correct options is 4.

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