The length of the rectangle is increased by 60 By what percent would the width have to be decreased ...........

Quantitative Aptitude ( CCS) Percentage

The length of the rectangle is increased by 60%. By what percent would the width have to be decreased to maintain the same area?

37 ½%

60%

75%

120%

Here 60% = 3/5

Now using the keyword attached with it, i.e 'increased'.

3/(5+3) = 3/8 = 37.5%

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Explain it in detail.

kindly elaborate maam

sunny bhonsle

l = 5:8 b= b1:b2 5b1= 8b2 => b1/b2=8/5 => 3/8 x 100% = 37.5 %