MCQ
The value of $\left(3^{-1}+4^{-1}\right)^{-1} \div 5^{-1}$ is
- A$\frac{7}{10}$
- ✓$\frac{60}{7}$
- C$\frac{7}{5}$
- D$\frac{7}{15}$
✓
Answer
Correct option: B.
$\frac{60}{7}$
B
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