W is directly proportional to U. If W = 5 when U = 3, find U when W = (frac{2}{7})
-
A.
(frac{6}{35}) -
B.
(frac{10}{21}) -
C.
(frac{21}{10}) -
D.
(frac{35}{6})
Correct Answer: Option A
Explanation
W (alpha) U
W = ku
u = (frac{w}{k}); (frac{2}{7}) x (frac{3}{5})
= (frac{6}{35})