A) 15 days
B) 24 days
C) 18 days
D) 16 days
Correct Answer: D
Solution :
[d] 10 mason 8 hrs 50 m wall 25 days 1 mason 5 hrs. 50 m wall \[25\times 10\,\,days\] 1 mason 1 hr 50 m wall \[25\times 10\times 8\,\,days\] 1 mason 1 hr 1 m wall \[\frac{25\times 10\times 8}{50}\,\,days\] 1 mason 1 hr 36 m wall \[\frac{25\times 10\times 8\times 36}{50}\,\,days\] 1 mason 6 hr 36 m wall \[\frac{25\times 10\times 8\times 36}{50\times 6}\,\,days\] 15 mason 6 hr 36 m wall \[\frac{25\times 10\times 8\times 36}{50\times 6\times 15}\,\,days\] = 16 days
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