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primary 5 | Maths | Whole Numbers
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neha
Neha

primary 5 chevron_right Maths chevron_right Whole Numbers chevron_right Singapore

please help me with this question . thanks

Date Posted: 4 years ago
Views: 263
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Old speed =75m/min
New speed = 90m/min
Time difference = 4 min
Time = distance / speed
D/75 - D/90 =4
D/450 = 4
D = 4 × 450
D = 1800m.
Hope this helps
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AC Lim
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neha
Neha
4 years ago
thanks a lot !!!