A carpenter had a board which measured 3m x 2m. She cut out a rectangular piece of 250 cm x 90 cm. What is the ratio of the area of cut out piece and the area of remaining piece?

No answers are not correct of your method because according to my book answer it is totally wrong and too can't understand the method

To find the ratio of the area of the cut-out piece to the area of the remaining piece, we first need to calculate the areas of both pieces.

The area of the cut-out piece can be found by multiplying its dimensions:
Area of cut-out piece = 250 cm * 90 cm

However, the dimensions of the board are given in meters, so we need to convert the dimensions of the cut-out piece from centimeters to meters:
Area of cut-out piece = (250 cm * 1 m/100 cm) * (90 cm * 1 m/100 cm)

Simplifying the above expression, we get:
Area of cut-out piece = (2.5 m) * (0.9 m)

To find the area of the remaining piece, we subtract the area of the cut-out piece from the total area of the board:
Area of remaining piece = (Total area of board) - (Area of cut-out piece)
= (3 m * 2 m) - (2.5 m * 0.9 m)

Now that we have the areas of both pieces, we can find the ratio:
Ratio = (Area of cut-out piece) / (Area of remaining piece)

Q we twertyuiop all

3m = 300cm

2m = 200cm

Cut-out piece = 250 * 90 = 22,500cm^2

(300*200)-22,500 = remainder

Find ratio of cut-out piece to remainder.