For the following questions answer them individually
What is the loss percent incurred when 2 chocolates got at a rupee are sold 4 for a rupee?
If (x - 1) and (x + 3) are the factors of $$x^{2} + ax + b$$, then find the values of 'a' and 'b' respectively.
The ratio of the time taken to row a certain distance upstream to the time taken to go downstream is 4 : 1.
What is the ratio of the speed along stream to that upstream?
Which country awarded Shri.Ram Nath Kovind with the highest civilian award the "Grand Order of the King of Tomislav"?
Two trains 200 m and 150 m long are running on parallel rails at the rates of 40 km/h and 45 km/hrespectively. In how much time will they cross each other if they are running in the same direction?