(ii) If the speed of a car is decreased by 12 km/h, it takes 1 hour more to cover a
distance of 240 km. Find the original speed of the car.
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It was karen’s first day at school. The teacher suggested that it would be a good idea for each
child to meet every othe child in the class. The teacher said, “When you meet, please shake
hands and introduce yourself by name.” If there were 8 children in the class, how many total
handshakes were there?
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