The graph below shows the production of cycles (in thousands) of two companies (A and B) for ten years. Find the production of cycles of B in the year when combined production of cycles was minimum.

Qing Yuan deposited ¥1100 in bank on 17th September 2009 and withdrew on 17th December 2010. Find the interest earned by her at simple interest of 12% pa.

Li Mei covers a certain distance in a certain time. If 1/4 of the distance is covered in 3/4 of the time with speed V_{1} and the rest of the 3/4 distance in 1/4 of the time with speed V_{2}, then find the ratio V_{1}:V_{2}.