A) 57 days
B) 228 days
C) 285 days
D) 324 days
Correct Answer: C
Solution :
Distance | Speed | Hour (per day) | Speed. |
\[_{2}^{1}\mathop{\downarrow }_{{}}^{{}}\] | \[_{2}^{1}\mathop{\uparrow }_{{}}^{{}}\] | \[_{6}^{15}\mathop{\uparrow }_{{}}^{{}}\] | \[_{x}^{1\,44}\mathop{\downarrow }_{{}}^{{}}\] |
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