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Janet goes for a walk every night after work. A map of the route has a scale of 1:30,000 in cm. If Janet walks 1.5 km on Monday night, how many cm is the route on the map????
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1 km = 100000 cm 1.5 km = 150000 cm So, on the map, we have the scale as 1:30,000 It'd be 150000/30000 => 15/3 => 5 cm Get it?
A ratio of 36:1 in cm. If it is magnigicied image of a parocite is 9 cm how large is it in real life?
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