In 2008, Hansi earned 7800.
i) He earned 15% more in 2009. Calculate how much he earned in 2009.
ii) In 2010 he earns 10% more than in 2009. Calculate the percentage increase in his earnings from 2008 to 2010
1) earned money is 2009 is =7800+7800×15100
=7800+1170
=Rs8970
2) in 2010 is 8970+8970×10100
=Rs9867
Let percentage =x
⇒7800×x100=9867−7800
⇒78x=2067
⇒x=206778
⇒x=26.5%
Hence,
The percentage increase in his earning from
2008 to 2010 is 26.5%