CGL 21 20-04-2022 Shift 1


Question 1

The radius of a circle is 90 cm. If the radius of this circle is increased to 99 cm, then what will be the percentage increase in the area of this circle?
एक वृत्त की त्रिज्या 90 cm है। यदि इस वृत्त की त्रिज्या को बढ़ाकर 99 cm कर दिया जाए, तो इस वृत्त के क्षेत्रफल में कितने प्रतिशत की वृद्धि होगी?

Options

A

22.5%

22.5%

B

25%

25%

C

20%

20%

D

21%

21%


Solution:

Correct Answer:

D

21%

21%


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