Question : The reciprocal of the sum of the reciprocals of $\frac{6}{5}$ and $\frac{3}{7}$ is:
Option 1: $\frac{57}{18}$
Option 2: $\frac{35}{57}$
Option 3: $\frac{6}{19}$
Option 4: $\frac{57}{35}$
Correct Answer: $\frac{6}{19}$
Solution :
Reciprocal of $\frac{6}{5}=\frac{5}{6}$
Reciprocal of $\frac{3}{7}=\frac{7}{3}$
Their sum = $(\frac{5}{6}+\frac{7}{3})=(\frac{5+14}{6} )=(\frac{19}{6} )$
Reciprocal of sum = $\frac{6}{19}$
Hence, the correct answer is $\frac{6}{19}$.
Related Questions
Know More about
Staff Selection Commission Combined Grad ...
Result | Eligibility | Application | Selection Process | Preparation Tips | Admit Card | Answer Key
Get Updates BrochureYour Staff Selection Commission Combined Graduate Level Exam brochure has been successfully mailed to your registered email id “”.