![A core cutter of 130 mm height has inner and outer diameters of 100 mm and 106 mm](https://www.gkseries.com/blog/wp-content/uploads/2023/09/A-core-cutter-of-130-mm-height-has-inner-and-outer-diameters-of-100-mm-and-106-mm.jpg)
Q. A core cutter of 130 mm height has inner and outer diameters of 100 mm and 106 mm, respectively. The area ratio of the core cutter (in %, up to two decimal places) is
Ans: 12.30-12.40
Sol:
![](https://www.gkseries.com/blog/wp-content/uploads/2023/09/image-57.png)
Q. A core cutter of 130 mm height has inner and outer diameters of 100 mm and 106 mm, respectively. The area ratio of the core cutter (in %, up to two decimal places) is
Ans: 12.30-12.40
Sol:
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