... whether or not Jackie had a higher average speed on her way to Baglan, than ... Calculate the average speed, in km/hour, of a racing car that covers 490km ...
2. Dangosir yn y tabl canlynol nifer y matsys a gafwyd ym mhob un o 50 blwch matsys gwahanol. ... Ni cheir barn disgyblion ysgol a'r rhai mewn gwaith ...