A) 16 days
B) 18 days
C) 15 days
D) 12 days
Correct Answer: C
Solution :
\[(5\times 20)\] skilled worker \[=(8\times 25)\] semi-skilled workers \[=(10\times 30)\] unskilled worker 100 skilled worker = 200 semi-skilled worker = 300 unskilled worker 1 skilled worker = 2 semi-skilled worker = 3 unskilled worker So, 3 skilled worker = 6 semi-skilled worker and \[\frac{5}{3}\] skilled worker \[=\left( 3\times \frac{5}{3} \right)\] = 5 unskilled worker According to questions \[\Rightarrow \,\,{{m}_{1}}\,{{d}_{1}}={{m}_{2}}\,{{d}_{2}}\] \[5\times 20=\left( 2+3+\frac{5}{3} \right)\times {{d}_{2}}\] \[100=\left( \frac{6+9+5}{3} \right)\times {{d}_{2}}\] \[{{d}_{2}}=\frac{5\times 20\times 3}{20}=\mathbf{15}\,\,\mathbf{days}\]
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