A skilled, a half skilled and an unskilled labor work for 7, 8 and 10 days respectively and they together get Rs.369 for their work. If the ratio of their each day work is \(\frac{1}{3} : \frac{1}{4} : \frac{1}{6}\) , then how much does the trained labor get?
Answer & explanation
Correct answer: option 4
Skilled : Half-skilled : Unskilled
Efficiency \(\frac{1}{3}\) : \(\frac{1}{4}\) : \(\frac{1}{6}\)
Efficiency 4 : 3 : 2 ... (i)
No.of days worked 7 : 8 : 10 .... (ii)
If we multiply (i) and (ii)
Work done 28 : 24 : 20 = 72
Trained/skilled labor gets = \(\frac{369}{72}\) × 28 = 143.5