The thresher 'A' has output capacity of $170 \mathrm{~kg} \mathrm{~h}^{-1}$ while threshing paddy crop at $14 \%$ moisture content (m.c.) with a grain to straw ratio 45: 55 . The thresher ' $\mathrm{B}$ ' has output capacity of $160 \mathrm{~kg} \mathrm{~h}^{-1}$ while threshing paddy crop at $13 \% \mathrm{~m} . \mathrm{c}$. with a grain to straw ratio $40: 60 .$ Both the threshers have threshing efficiency of $97 \%$. If a farmer has to carry out threshing of paddy crop at $12 \%$ m.c. with a grain to straw ratio 40: 60 in the least time, the selected thresher and its output in $\mathrm{kg}$ when operated for 5 hours will be

(A) $\mathrm{A}$ and 738

(B) $\mathrm{A}$ and 850

(C) $\mathrm{B}$ and 791

(D) $\mathrm{B}$ and 800

The thresher 'A' has output capacity of $170 \mathrm{~kg} \mathrm{~h}^{-1}$ while threshing paddy crop at $14 \%$ moisture content (m.c.) with a grain to straw ratio 45: 55 . The thresher ' $\mathrm{B}$ ' has output capacity of $160 \mathrm{~kg} \mathrm{~h}^{-1}$ while threshing paddy crop at $13 \% \mathrm{~m} . \mathrm{c}$. with a grain to straw ratio $40: 60 .$ Both the threshers have threshing efficiency of $97 \%$. If a farmer has to carry out threshing of paddy crop at $12 \%$ m.c. with a grain to straw ratio 40: 60 in the least time, the selected thresher and its output in $\mathrm{kg}$ when operated for 5 hours will be

(A) $\mathrm{A}$ and 738

(B) $\mathrm{A}$ and 850

(C) $\mathrm{B}$ and 791

(D) $\mathrm{B}$ and 800

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