Question

The length of a square is increased by 40% while breadth is decreased by 40%. Find the ratio of the area of the
ng rectangle se formed to that of the original square resulting rectangle so formed to that of the original square​

Answer 1

Correct Answer:

B) 21 : 25

Description for Correct answer:

Let the side of the square be 100 m.

Area of the square = 100×100 sq.m.

In the new dimension of the rectangle.

Length = 140 m. and breadth = 60 m.

Area of the rectangle = 140×60

Ratio = area of the rectanglearea of the squre

140×6010×100=84100=2125 = 21 : 25

Answer 2

$\huge\underline\mathbb\pink{Answer :-}$

Let the side of the square be 100 m.

Area of the square = 100×100 sq.m.

In the new dimension of the rectangle.

Length = 140 m. and breadth = 60 m.

Area of the rectangle = 140×60

ratio

= $\frac{area\: of\: the\: rectangle}{area \: of \: the \: square}$

=$\frac{140 × 60}{10 × 100}$

=$\frac{84}{100}$

=$\frac{21}{25}$

= 21 : 25