Foreign visitors to Region B form 15%, 20% and 25% of the tourist visits during 2010, 2011 and 2012 respectively. Assume that each foreign tourist spends ₹ 7,000, while each domestic tourist spends ₹ 3,000. What is the total revenue (in ₹ crores) from tourist spends during 2010-2012?

Combined tourist visits by foreigners in region B during 2010 to 2012 $$ = 0.15*125,000+0.2*115,000+0.25*170,000 = 84250$$

Money spent by each foreign tourist $$= Rs. 7000 $$

Total money spent by foreign tourists $$= 84250*7000 = 58.975$$ cr.

Combined tourist visits by domestic tourists in region B during 2010 to 2012 $$ = 0.85*125,000+0.8*115,000+0.75*170,000 = 325750$$

Money spent by each domestic tourist $$= Rs. 3000 $$

Total money spent by domestic tourists $$= 325750*3000 = 97.725$$ cr.

Total money spent by all tourists in region B during 2010 to 2012 $$ = (58.975+97.725 ) cr = 156.7$$ cr