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For 20 Student, the mess bill for 12 days is Rs 7000. In how many days will the mess charges to Rs 4900 for 8 students?
A. 20 days
B. 21 days
C. 22 days
D. 23 days

1 Answer

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Best answer
Correct Answer - B
`(M_(1)D_(1))/(B_(1))=(M_(2)D_(2))/(B_(2))` where `B_(1) and B_(2)` are the mess bills.

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