LEARNConcierge

AskQ logo

STUCK ON HOMEWORK?

ASK FOR HELP FROM OUR KIASUPARENTS.COM COMMUNITY!

Question

Andy and Jerry cycled from Tampines Mall to Eastpoint at 11km/h and 8km/h respectively. Andy left Tampines Mall an hour later than Jerry. He arrived at Eastpoint 30mins earlier than Jerry. He long did Andy take?

 

Thanks!

Answer

This is a Distance speed time question

    Time    Speed    Distance   
Andy   1u 11 11u
Jerry  1u + 1.5  8 8u + 12

 

11u = 8u + 12

11u – 8u = 12

3u = 12

1u = 12 ÷ 3 = 4 hour

0 Replies 0 Likes
LEARNConcierge