Question

5. Length and width of a field are in the ratio 5:3.
If the width of the field is 42 m then its length
is:
(A) 100 m
(B) 80 m
(C) 50 m
(D) 70 m​

Answer 1

Answer:

(D) 70 m

The length of field is 70 m

Step-by-step explanation:

Given:

• Length and width of a field are in the ratio 5:3

• If the width of the field is 42 m

To find :

• The length of field

Solution:

Let,

Length of the field = 5x

Width of the field = 3x

Also,

The width of the field is 42 m

So,

⇒ 3x = 42

⇒ x = 42 / 3

⇒ x = 14

Now, find the length

★ Value of 5x:

⇒ 5 (14)

⇒ 5 × 14

⇒ 70

Therefore,

(D) 70 m

The length of field is 70 m

Answer 2

Given :

• Ratio of length and width is 5:3
• If the width of the field is 42 m.

To find :

• Length

According to the question,

• Also the width is given,then
• Let the width be x

→ 3x = 42

→ x = 42 ÷ 3

.°. x = 14 m

• Now,we calculate the length

→ 5x

Putting the value of x

→ 5 × 14 m

→ 70 m

.°. The length is 70 m... ( Answer )

• Option D) is correct...

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