A factory requires 42 machines to produce a given number of articles in 63 days. How many machines would be required to produce the same number of articles in 54 days?
49 machines
54 machines
31 machines
32 machines
A
32 machines
B
31 machines
C
49 machines
D
54 machines
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Solution
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This question is based on Inverse proprtion
According to the given conditions,
No. of machines Time taken
4263 days
x54 days
By inversion proportion,
42×63=x×54
∴x=42×6354
∴x=49
Answer is 49 machines
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