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primary 6 | Maths | Speed
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primary 6 chevron_right Maths chevron_right Speed chevron_right Singapore

Please help to solve and explain. TIA

Date Posted: 4 years ago
Views: 274
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AC Lim
AC Lim
4 years ago
Ans : 8 complete round?
OBAMA
OBAMA
4 years ago
Yes. Could you please send me the details? Thank you

See 1 Answer

25 mins = 1500 sec
Speed 1 m/s
1 sec → 1m
1500 sec → 1500m
Ravi=7u
Ali =4u
Different 7u-4u=3u
3u=1500m
1u=500m
Ravi =7×500 =3500m
400m →1 complete round
3500m= 3500÷4=8.75 round.
Hence, Ravi completed 8 complete round.
Hope this helps.
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AC Lim
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OBAMA
OBAMA
4 years ago
Thank you for your help & solution!