The radius of a circle is increased by 25%, then area increased by?
Answer & explanation
Correct answer: option 3
Using the formula for net effect = x% + x% + \(\frac{x\;× \;x}{100}\) %
⇒ Net Effect = 25% + 25% + \(\frac{25\;×\;25}{100}\)% = 56.25%
The radius of a circle is increased by 25%, then area increased by?
Correct answer: option 3
Using the formula for net effect = x% + x% + \(\frac{x\;× \;x}{100}\) %
⇒ Net Effect = 25% + 25% + \(\frac{25\;×\;25}{100}\)% = 56.25%