SOLUTION: Please help me to answer these problems. i don't know how am i going to answer it. thanks in advance for the help:) Questions: 1. Two sports utility vehicles have average speeds

Question 214112: Please help me to answer these problems. i don't know how am i going to answer it. thanks in advance for the help:)
Questions:
1. Two sports utility vehicles have average speeds of 65 and 75 kph respectively. if they leave the same point and travel in opposite direction, in how many hours would they be 1400km apart?
2. A laboratory custodian has to complete x hours of laboratory training. after completing one-fourth of the total number of hours required for training the custodian noticed that if he attends the training for three hours more, he would have completed half of the total number of hours required. how many training hours is the custodian required to attend?
3. Lester and Raymond went on a camping trip with their motorcycles. in going back to the village, Raymond left the camp 10 mins. ahead of Lester. if Raymond was traveling 30mph and Lester 35mph, how long before Lester caught up with Raymond?
4. Two planes leave Manila at 1:00pm. Philippine Airlines heads east at 450 mph and Cathay Pacific Plane heads due west at 600 mph. how far apart will they be after 2 hours?
thanks for the answers:)
Answer by thinkingeye(11) (Show Source): You can put this solution on YOUR website!
1) 10 hrs
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