Question

The perimeter of a rectangle is 75 cm. It's length is 2 3/4 times it's breadth. Find the length and breadth of the rectangle.​

Answer 1

Answer:

$perimeter = 75 \: cm \\ breadth = x \\ length = 2 \frac{3x}{4} \\ 2(l + b) = 75 \\ 2(x + 2 \frac{3x}{4} ) = 75 \\ 2( \frac{15x}{4}) = 75 \\ \frac{30x}{4} = 75 \\ 30x = 75 \times 4 \\ x = \frac{75 \times 4}{30} \\ x = 30$

therefore the breadth is 30 cm and length is 45cm

Step-by-step explanation:

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