Rohan leaves home between 7 a.m. and 8 a.m. and r 1 p.m. and 2 p.m. to find that the minute and hou terchanged their positions. How long was Rohan ou
Answer
Answer (as printed):
Explanation
Clearly, the hands will interchange positions afte 6 times i.e. they together will make (6 + 1) or 7 Since the hands interchange positions after every 55 we have: 5 Required time interval = 55 × 7 min = 13 9 = 387 min = 6 hrs 2 13 QUANTITATIVE APTITUDE eturns between r hands have in- 11 12 1 11 12 1 t of the house? 10 2 10 2 r crossing each other 9 3 9 3 complete revolutions. 8 4 8 4 5 7 6 5 7 6 5 minutes, 13 720 5040 × 7 min = min 13 13 9 7 min. 13
Explanation as extracted from the printed page; notation may be imperfect.