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Mathematics is the door and key to the sciences.  ~ Roger Bacon

Sample SMaths Challenge Question for Category Primary/Year 6

Answer with solution:

After 6 hours,

Distance Jason travelled

= 6 hours x 75km/h

= 450km

Distance Melvin travelled

= 870km - 450km

= 420km

Melvin's average speed

= 420km ÷ 6 hours

= 70km/h

Melvin's average speed is 70km/h.

Town A and Town B were 870km apart. Jason left Town A for Town B and travelled at an average speed of 75km/h. At the same time, Melvin left Town B for Town A. The two of them met 6 hours later. Find Melvin’s average speed.

a) 65km/h             c) 80km/h

b) 70km/h             d) 85km/h