Nicky and Cristina are running a race. Since Cristina is faster than Nicky, she gives him a 36 meter head start. If Cristina runs at a pace of 6 meters per second and Nicky runs at a pace of only 3 meters per second, how many seconds will Nicky have run before Cristina catches up to him?  Choose the correct option: A) 15 seconds B) 18 seconds C) 25 seconds D) 30 seconds E) 12 seconds
used pluging in method   say t is the time for cristina to catch up with Nicky, the equation will be as under:   for Nicky=N=3*t+36   for Cristina=C=6*t   @t=12, N=72 C=72 right answer   ans:12 seconds
<result>E</result>
Nicky and Cristina are running a race. Since Cristina is faster than Nicky, she gives him a 36 meter head start. If Cristina runs at a pace of 6 meters per second and Nicky runs at a pace of only 3 meters per second, how many seconds will Nicky have run before Cristina catches up to him?