1. in city 18 km, on long route upto 25 km
2. it depends on the size of the cylinder. u can calculate it by the values given above in para 1.
3. calc by cng price in city about 2.97 Rs and on long route about 2.15 Rs
4. 220 bar
5. At low pressure gas cylinder is not filled completely. lesser the pressure lesser will be the cylinder filled and will last for less miles. like at 220 bar ideal gas pressure 50 ltr cylinder of cng gets filled with 8 kg (max) cng