A) 2 : 1
B) 3:1
C) 1:1
D) 4:1
Correct Answer: B
Solution :
\[\frac{{{E}_{1}}+{{E}_{2}}}{{{E}_{1}}-{{E}_{2}}}=\frac{120}{60}=2:1\] Applying componendo and dividendo, \[\frac{{{E}_{1}}}{{{E}_{2}}}=\frac{2+1}{2-1}=\frac{3}{1}\]You need to login to perform this action.
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