there are 1500 book in a library. if the ratio of English, hindi, and urdu is 4:5:1,then find the number of book of each languag
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We essentially have a ratio here:
Since we know the ratio is going to stay constant at
, we can use this to find the height of the lamp along with the information that the total distance from the lamp to the tip of his shadow is 20:
Since we know the ratio is going to stay constant at