A thief steals a car at 4.05 P.M. and drives it at 55 km/hr. The theft is discovered at 4.20 P.M. and the owner sets off in another car at 70 km/hr. when will he overtake the thief ? Pick one:
A) 4.50 P.M.  B) 5 P.M.  C) 5.10 P.M.  D) 5.15 P.M.  E) None of these
Explanation :   Solution: Suppose the thief is overtaken x hrs after 4.05 P.M.   Then, distance covered by the thief in x hrs. = distance covered by owner in (x - 1/4) hrs.   .'. 55x = 70(x - 1/4)   =&gt; 15x = 70/4   =&gt; x = 70/(15*4) hr = 14/12 hr   =&gt; x = (14/12 * 60)= 
<gadget id="calculator">(14/12 * 60)</gadget>
<output>70</output>
70 min.   So, the thief is overtaken at 5.15 pm.   Answer : 5.15 P.M.
<result>D</result>
A thief steals a car at 4.05 P.M. and drives it at 55 km/hr. The theft is discovered at 4.20 P.M. and the owner sets off in another car at 70 km/hr. when will he overtake the thief ?