 
 <translate> Speed = 63 * 5/18 = 35/2 m/sec
Time taken = 280 * 2/35 = 16 sec So the final answer is (B). <ibo> Speed = 63 * 5/18 = 35/2 m/sec Oge e were = 280 * 2/35 = 16 sec Ya mere azịza ikpeazụ bụ (B). 