Civil Services TNPSC Group 1 (New Syllabus) Mock Test 2025 Quantitative Aptitude Time and Work Work Efficiency
X can complete a work in 12 days. Y is 20% less efficient than X. If they work together for 5 days and X leaves, what part of the work is left incomplete?
1
\(\frac{1}{3}\)
2
\(\frac{1}{4}\)
3
\(\frac{2}{3}\)
4
\(\frac{1}{5}\)