Two persons P and Q are 844 m apart. They both start cycling simultaneously in the same direction with speeds of 12 m/s and 8 m/s, respectively. In how much time will P overtake Q? |
3 minutes and 20 seconds 3 minutes and 31 seconds 3 minutes and 18 seconds 3 minutes and 24 seconds |
3 minutes and 31 seconds |
Distance b/w P & Q = 844 m Relative Speed = ( 12 - 8 ) = 4 m/sec ( when they moves in same direction) Time taken by P to overtake Q = \(\frac{844}{4}\) = 211 sec SO , Time taken by P to overtake Q is 3 minutes 31 seconds . |