NIACL Model Paper 1 with solutions for free online practice

Question : 19 of 100

Marks: +1, -0

If the length o f a rectangle is increased by 10% and the area is unchanged, then by how much percent does the breadth decrease?

Solution:

(a) Area of Rectangle = length x breadth Here, length is increased by 10%. But area is constant so that breadth is decreased.

Percentage decrease in breadth

={b-{100b}/110}/b×100=100/11

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