state gov UP Police Head Operator (Radio Cadre) Mock Test Quantitative Aptitude Simplification Fractions
If x = \({2 \over 5} \times {{ - 3} \over 7} - {1 \over {14}} - {3 \over 7} \times {3 \over 5},\) then what is the reciprocal of 3x?
1
\(2 \over 3\)
2
\(- {2 \over 3}\)
3
\(- {3 \over 2}\)
4
\(1 \over2\)