The radius of a circle is increased by 20%, then area increased by?
Answer & explanation
Correct answer: option 2
Using the formula for net effect = x% + y% + \(\frac{x\;× \;y}{100}\) %
⇒ Net Effect = 20% + 20% + \(\frac{20\;×\;20}{100}\)% = 44%
The radius of a circle is increased by 20%, then area increased by?
Correct answer: option 2
Using the formula for net effect = x% + y% + \(\frac{x\;× \;y}{100}\) %
⇒ Net Effect = 20% + 20% + \(\frac{20\;×\;20}{100}\)% = 44%