state gov Rajasthan Gram Vikas Adhikari (VDO) Mock Test 2021 Quantitative Aptitude Time and Work Work Efficiency
X can do work in 10 days and Y in 20 days. If they work on it together for 3 days, then the fraction of the work that is left:
1
\(\frac{6}{5}\)
2
\(\frac{11}{20}\)
3
\(\frac{20}{11}\)
4
\(\frac{11}{15}\)