Two circles of same radius intersect each other at P and Q. If the length of the common chord is 30 cm and distance between the centres of the two circlesis 40 cm, then what is the radius (in cm) of the circles?
In December 2017, Mid-Term Review of the Foreign Trade Policy (FTP) was released. The review announced how much percent increase each in incentive rates of Merchandise Exports from India Scheme and Services Export from India Scheme?