Q: A is twice as good a workman as B and together, they finish a piece of work in 18 days. In how many days will A alone finish the work ?
(a)28 days
(b)30 days
(c)27 days
(d)29 days
Correct Answer: (c)
The correct answer is (b) '30 days'. This question from the Quantitative Aptitude & Data Interpretation domain tests knowledge of Numerical Ability.