When 15% is lost in grinding wheat, a country can export 30 lakh tons of wheat. On the other hand, if 10% is lost in grinding, it can export 40 lakh tons of wheat. The production of wheat in the country is	Choose the correct option:
A) 20 lakh tons  B) 80 lakh tons  C) 200 lakh tons  D) 800 lakh tons  E) None
Sol.   Let the production be x lakh tons.   Then, 15% of x - 10% of x = (40 - 30) lakh tons   ⇔ 5% of x = 10 lakh tons   ⇔ x = (10 x 100 / 5) = 200 lakh tons.   Answer 200 lakh tons
<result>C</result>
When 15% is lost in grinding wheat, a country can export 30 lakh tons of wheat. On the other hand, if 10% is lost in grinding, it can export 40 lakh tons of wheat. The production of wheat in the country is