the ratio of land to water on the earth is 1:2. if the ratio land to water in northen hemisphere is 2:3 , then find the ratio of land to water in southern hemisphere
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Answer:
In northern hemisphere, we have land and water in the ratio of 2:3 , as such it has A2×25=2A10=A5 land area and A2×35=3A10 area.
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Let us say that the total quantity is 120x
Land is 40x and water in 80x
Quantity in northern hemisphere = 120x / 2
= 60x
Land in Northern hemisphere = (2/5)*60x
= 24x
Land in Southern hemisphere = 40x - 24x = 16x
Water in Southern hemisphere = 60x -16x
= 44x
Required ratio = 16x : 44x = 4:11
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