W is directly proportional to U. If W = 5 when U = 3...
W is directly proportional to U. If W = 5 when U = 3, find U when W = 2/7
6/35
10/21
21/10
35/6
Correct answer is A
W∝UW=KUK=WUK=53W=53U27=53UU=27×35U=635
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