Primary 6 Problem Sums/Word Problems - Try FREE

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Question 1 of 3


From a point, a car and a lorry started moving in opposite directions along a straight road.

They were 400 km apart after having travelled for 4 h.

The average speed of the car was 45 km/h.

Find the average speed of the lorry.

 

The correct answer is : 55
Average speed of lorry: km/h