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  • A can give B a start of 20 metres and C a start of 39 metres in a walking race of 400 metres.
Question 1:
A can give B a start of 20 metres and C a start of 39 metres in a walking race of 400 metres. How much can B give C a start?
A. 20 m
Feedback (L - x12)x23 = L(x13 - x12)= (400 - 20)x23 = 400(39 - 20)= x23 = 20 metres
B. 18 m
C. 15 m
D. 25 m

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