Question

& If the ratio between the length and perimeter of a rectangular field is 1:3, then its length
and breadth are in the ratio
(a) 1.2
(b) 2:3
(c) 3:2
(d) 2:1
Hint:1:2 (+b) = 1:3. Letlax. Then, 201 + b) = 3x
So, 7:6:
2
2:1.1
2​

Answer 1

Answer:

Step-by-step explanation:

Let x be the common variable due to ratio.

Let the breadth be b.

Ratio of length to perimeter = 1:3

Length = 1x

perimeter = 3x

Perimeter of rectangle = 2 (l + b)

3x = 2(x + b)

3x = 2x + 2b

3x - 2x = 2b

x = 2b

x / 2 = b

1 / 2 = b

Correct option - (a) 1:2

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Answer 2

Answer:

2:1

Step-by-step explanation:

answer is in the question itself and solution roo