exam Maths Puzzle Numerical Ability

Cameron had driven his car 20 kilometers before Ruth began driving her car to catch up. How long will it take Ruth to catch Cameron if Cameron travels at 55 kilometers per hour and Ruth travels at 135 kilometers per hour?

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exam Other Question

Science and medicine.
Ariana took 2 h longer to drive 360 mi on the first day of
a trip than she took to drive 270 mi on the second day. If her speed was the same on both days, what was the driving time each day?

thanks (t + 6.13) - 2.4, for t = 100
we come up with an answer of 103.73