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Question

Can anyone tell me how to do this

 

30×12=360

18m/s-12m/s=6m/s

360÷7=60 sec 

Am I right?

Source: Woodgrove Primary

Answer

  your working is correct. 

30 * 12 = 360

18 – 12 = 6

360/6 = 60

So it takes 60 s for Linda to catch up. 

1 Reply 2 Likes ✔Accepted Answer