RRB Group D 27-Sep-2018 Shift 1 Solved Paper

Tribeni travelled $175\mathrm{}\mathit{k}\mathit{m}$ in $3.5\mathrm{}\mathit{h}\mathit{r}\mathit{s}$.
After 2.5 hours, she covered $=2.5\times 58$
$=145\mathrm{}\mathit{k}\mathit{m}$
Now after 2.5 hours,
$175-145\Rightarrow 30\mathrm{}\mathit{k}\mathit{m}\mathit{s}$ remaining.
In remaining one hour she rest 20 minutes.
So, 40 minutes to cover $30\mathrm{}\mathit{k}\mathit{m}$ .
40 minutes $=\mathrm{}\frac{40}{60}$ hours
So, speed in last patch $=\frac{30}{\frac{40}{60}}=45$ km/hr