**Maris Stella SA 2 paper 2 question 12**

Singapore and Kuala Lumpur is 375 km apart. Raphael left Singapore for Kuala Lumpur at 10.00 am travelling at an average speed of 75 km/h. Sean left Singapore later than Raphael and caught up with him at 12.00 noon. Sean was travelling at a speed of 90 km/h. (A) At what time did Sean leave Singapore? (B) How much later did Raphael arrive in Kuala Lumpur than Sean?