A K Mathematical hero

All mathematical problem and its solutions for copetative exams are provided here.These are following- Time and Work,Pipe and Cistern,Ratio and Proportion,Age based problems,Average,Patnership,mixture, Number system, LCM and HCF, Percentage,Profit and Loss, Discount, Simple and Compound interest, Speed Time and Distance, Boat and stream, Mensuration, Data interpretation,Co-ordinate geometry etc.