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%
- 5827 दृश्य
- 47 उत्तर
47 उत्तर
- What is a perfect score on a GRE? Is 160 a good GRE score?
- I have done huge mistake while writing gre can anyone help me please
- GRE ELIGIBILITY 2017
- GRE SYLLABUS FOR 2017
- GRE - Best Mobile app to prepare, Mock tests?
- Can I give only GRE and go for both MS and MBA?
- GRE exam pattern
- What business schools accept the GRE ?
- How can I study for GRE in one month? How do I start studying for the GRE?
- GRE - Important dates, results, exam dates, INTERVIEW ?
मॉक परीक्षण अभ्यास के लिए
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%