before the second car leaves. If the first car travels at 70 kph and the second car travels at 75 kph, how many kilometres will be travelled when the cars are level?
2007-01-27 10:21:30 · 12 answers · asked by sunsworth1975 1 in Social Science ➔ Other - Social Science
The answer is 105K. 'Ron' gets the right answer but doesn't explain how. MBK also gets the right answer, but by a method of trial and error.
The correct methodology is. after 6 minutes the first car has travelled 70x(6/60) = 7k.
The second car gains at the rate of 75/5 over the first car = 15.
Distance required is 15x7k = 105k.
2007-01-28 03:26:13 · answer #1 · answered by Veritas 7 · 0⤊ 0⤋
My word, what a range of answers to a Q that can have only one correct A!! 105km is correct.
After 90 minutes, 1.5 hours, the first car will have travelled 70 plus half of 70 = 105km. The second will travel 9/10 of 75 km in the first 54 mins (9/10 of an hour) which is 67.5km and half of 75km in the next half hour which is 37.5km making a total of 105km.
2007-01-28 07:50:53 · answer #2 · answered by MBK 7 · 0⤊ 0⤋
95 kilometres
2007-01-27 18:32:10 · answer #3 · answered by MICHAEL B 4 · 0⤊ 1⤋
105 kilometres.
2007-01-27 19:09:06 · answer #4 · answered by Polo 7 · 1⤊ 0⤋
100 km
2007-01-27 18:43:11 · answer #5 · answered by angie 5 · 0⤊ 1⤋
241 km shared between both cars
2007-01-27 18:35:16 · answer #6 · answered by shyped 2 · 0⤊ 1⤋
Trying to get a girlfriend with questions like this are you?
Good luck!
2007-01-27 19:06:27 · answer #7 · answered by Anonymous · 0⤊ 1⤋
Go see a math tutor!
2007-01-27 18:33:34 · answer #8 · answered by _____ 2 · 0⤊ 1⤋
What is with you, Mr. Happy Mathematical...?
2007-01-27 18:30:59 · answer #9 · answered by stuffnstuff 3 · 0⤊ 1⤋
Too late for this, My head's hurting!
2007-01-27 18:26:21 · answer #10 · answered by Anonymous · 0⤊ 1⤋