A) \[28\,\,\frac{3}{7}%\]
B) \[28\,\,\frac{4}{7}%\]
C) \[28\,\,\frac{7}{4}%\]
D) \[28\,\,\frac{7}{3}%\]
Correct Answer: B
Solution :
Reduced per cent consumption \[=\frac{40}{140}\times 100\] \[=28\frac{4}{7}%\]You need to login to perform this action.
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