promotion image of download ymail app
Promoted
Anonymous
Anonymous asked in Science & MathematicsMathematics · 2 months ago

Quick help can’t my head round this ?

Two model cars, A and B are in a race

They start together on the starting line

Assume each car travels at a constant speed 

Car A takes 30 seconds to complete each lap of the track 

 CarB takes a whole number of seconds to complete each lap of the track 

Two cars next cross the starting line together 150 seconds after the start of the trade 

Find the four possible times that car b could take to complete one lap 

You may find this information helpful 

(150=2x3x5x5)

(30=2x3x5)

1 Answer

Relevance
  • 2 months ago

    Car B's time to complete a lap could be 150 seconds, but it could also be some divisor of 150 that is NOT a multiple of 30. It could be 75 or 50 or 25.

    Answer: 25s, 50s, 75s, 150s

    • Commenter avatarLogin to reply the answers
Still have questions? Get your answers by asking now.