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100

Jiayi completed a 12-km race in  h. What was her running speed in km/min?

0.3 km/min

100

A sailboat is cruising at 0.7 km/min. How long does it take to travel 56 km? Give your answer in hours.

 h

100

Jeremy built a 1.5-m track for his toy train. His toy train took 15 min to travel 3 rounds of the same track. Find the speed of the toy train in km/h.

18 km/h

200

Ranjeet flew a drone at a speed of 39 km/h. How far can the drone travel in 50 min?

32.5 km

200
  1. A commercial helicopter travels at a speed of 286 km/h. A cargo helicopter travels at a speed of 260 km/h. How much more time would the slower helicopter take to fly 780 km? Give your answer correct to the nearest minute.

16 min

200

Scott took 48 min to drive to a factory 80 km away. On his return journey, he took the same route and reduced his speed by 25%. Find the total time taken for the journey, in minutes.

112 min

300

A labelling machine prints labels at a speed of 2.5 cm/s. What percentage of a 2-m long label can it print in 1 min? 

75%

300

Zain took 15 min to jog 2.16 km from his home to the market. He then strolled at a speed of 94 m/min to the park. He reached the park 1 h after he left home. Find his average speed for the whole journey.

106.5 m/min

300

Van A and Van B left a warehouse at the same time, travelling in opposite directions along a straight route. After 36 min, the two vans were 60 km apart. Van A travelled at an average speed of 55 km/h. Find Van B’s average speed. Which van was faster?

45 km/h

600

A pipe is 150 cm long. Benny placed a red marble at one end of the pipe and a green marble at the other end. He rolled both marbles towards each other. The red marble moved at an average speed of 40 cm/s. The green marble moved at an average speed of 60 cm/s. How long did it take for both marbles to hit each other?

1.5s 

600

Ray and Baskaran set off on their electric scooters at the same time from the same point, along a straight path at a constant speed. Baskaran travelled at 40 km/h and was 2 km ahead when Ray was midway along the path. How much faster did Baskaran reach the end point than Ray?

6 mins 

600

A red ferry travelled from Eastport to Westport at an average speed of 50 km/h. 10 min later, a blue ferry left Westport for Eastport at an average speed of 40 km/h. The two ferries passed each other  h after the red ferry left Eastport. How long did the red ferry take to reach Westport?

4h 22 mins