Questions

From Worst to Best

281 P6.SP.TL.18012298

Level 3
Recca took 5 hours to travel from Country A to Country B at 60 km/h. Then he travelled from Country B to another country at 1.5 times his original speed. 40% of the distance from Country A to Country B is equal to ¹₃ of the distance from Country B to the next country. Find the average speed for the whole journey and express it in mixed number.

5 m

Attempt

282 P6.AP.TL.17090840

Level 3
The figure is made up of a big circle and 4 small identical circles. The diameter of the small circle is 28 cm. Find the shaded area. (Take π = 3.14)

4 m

Video Attempt

Triangle Circle area Semicircle Composite figure area Leaf

283 P6.SP.TL.18012291

Level 3
Andy and Luke took part in a 24-km marathon. Andy ran half the distance at a speed of 10 km/h and jogged the rest of the way at a speed of 8 km/h. Luke ran half his total time at 12 km/h and jogged the rest of the time at 6 km/h. If they started the marathon at 7.30 a.m., at what time would each of them finish?

Andy
Luke

5 m

Attempt

DST triangle Average speed Journey by parts Different speed Same starting time Unit conversion Start end time Fraction of a whole

284 P6.SP.TL.18012293

Level 3
At 08 00, Ali left Town P and cycled towards Town Q. Grace left Town P and cycled towards Town Q at 08 30. Grace's cycling speed was 2 km/h faster than Ali. At 12 00, Grace caught up with Ali. Find the cycling speed of each cyclist.

Ali
Grace

5 m

Attempt

DST triangle Average speed Same starting point Different starting time Overtaking More than or less than

285 P6.SP.TL.18012294

Level 3
James started driving from Town A towards Town B at 13 40 at an average speed of 70 km/h. Melvin began driving from Town A towards Town B at 15 10 at an average speed of 100 km/h.