SSC CGL – Combined Graduate Level Examination · प्रश्न 70
A circular park with 8 m diameter is surrounded by a 0.5 m wide path. What is the percentage increase in area?
उत्तर देखें और व्याख्या
उत्तर: (C) 26.56%
व्याख्या
(4.5² − 4²)/4² = 4.25/16 = 26.56%.