Direction∶ A vehicle manufacturing company sells three types of vehicles; 4 wheelers, 3 wheelers and 2 wheelers in two different sessions 2010-2012 and 2013-2015. In the first session, the ratio of 4 wheelers, 3 wheelers and 2 wheelers sold is 1 ∶ 2 ∶ 2.  Also, 3 wheelers sold in this session is 20% more than the same type of wheelers sold in the second session. The total vehicles sold in session 2010-2012 is 12 lacs. The 4 wheelers sold in 2013-2015 is 20,000 more than the 2 wheelers sold in 2010-2012. The 2 wheelers sold in 2013-15 are 12.5% more than that of sold in 2010-12.