The task is to generate the correct answer for a given math problem.

Q: Problem: a farmer with 1,350 acres of land had planted his fields with corn , sugar cane , and tobacco in the ratio of 5 : 2 : 2 , respectively , but he wanted to make more money , so he shifted the ratio to 2 : 3 : 4 , respectively . how many more acres of land were planted with tobacco under the new system ?

A: 300
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Q: Problem: the ratio of the radius of two circles is 1 : 3 , and then the ratio of their areas is ?

A: 1 : 9
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Q: Problem: a , b and c invests rs . 2000 , rs . 3000 and rs . 4000 in a business . after two year a removed his money ; b and c continued the business for one more year . if the net profit after 3 years be rs . 4800 , then a ' s share in the profit is ?

A:
76
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