Q.1 Find x if 15:60 : : x:20
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Answer:
x = 5
Step-by-step explanation:
Since in proportion,
a:b : : c:d = a/b = c/d
=> 15/60 = x/20
=> x/20 = 15/60
=> x = 15/60×20
=> x = 300/60
=> x = 5
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