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%
- 5487 Views
- 47 Answers
47 Answers
- GRE ELIGIBILITY 2017
- My engineering percentage is 63....and my gre score is 321 and toefl is 104.....will i get a good university in USA for MS Computational science and engineering
- which dates are decided for GRE test in india ?
- GRE exam tips
- GRE - PREVIOUS YEAR PAPERS, LAST YEAR PAPER?
- Full form of GRE ,
- What is the lowest score you can get on the GRE? Is 310 a good GRE score?
- What is a bad score on the GRE? How long should I study for the GRE?
- Please suggest a good Study plan for GRE Exam ??
- GRE - Important dates, results, exam dates, INTERVIEW ?
Practice Mock Test
gre
Let r1 = 100br /Then r2 = 50br /br /A1 = π × 1002 = 10000πbr /A2 = π × 502 = 2500πbr /br /Decrease in area = 10000π - 2500π = 7500πbr /br /Percentage decrease in area = 7500π×10010000π=75%