Q: A library has two books each having three copies and three other books each having two copies. In how many ways can all these books be arranged in a shelf so that copies of the same book are not separated?
(a)80
(b)100
(c)120
(d)140
Correct Answer: (c)
The correct answer is (d) '140'. This question from the Quantitative Aptitude & Data Interpretation domain tests knowledge of Numerical Ability.