A) \[\frac{9}{40}\]
B) \[\frac{3}{40}\]
C) \[\frac{1}{7}\]
D) \[\frac{21}{40}\]
Correct Answer: D
Solution :
Number of match sticks used in 7 days\[=7\times 3=21\] \[\therefore \]fraction \[=\frac{21}{40}\]You need to login to perform this action.
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