GRE exam question

If the radius of a circle is decreased by 50%, find the percentage decrease in its area. A) 55% B) 65% C) 75% D) 85%

• Sweety
• 5872 दृश्य
• 47 उत्तर

• C

  • Cherechukwu
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  0

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• 75

  • Sid
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  5

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• 55

  • Shashwat
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  -1

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• 75%

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  1

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• 75

  • Anand
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  5

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• Let original radius = R.br /New radius = = br /Original area =  and new area = br /Decrease in area =  = 75%

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  14

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