Question

# The length and breadth of a rectangle are 20 cm and 10 cm. The length of another rectangle is 40 cm but the breadth is unknown. It is known that the ratio of length to the breadth of both the rectangles is the same. What is the measure of the breadth of the second rectangle?15 cm20 cm30 cm10 cm

Solution

## The correct option is B 20 cmRatio of the length to the breadth of the first rectangle =20:10 ⇒2:1 Let the breadth of the second rectangle be x cm. It is given, 40:x=2:1 ⇒ 40x=21 ⇒2x=40 ⇒x=20 cm

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