RRB NTPC Mains or Stage 2 Model Paper 7 with solutions

(c) Let the husband and the wife meet after x minutes. 4500 metres are covered by Pradeep in 60 minutes.
In x minutes, he will cover$\frac{4500}{60}$x metres. Similarily,
In x minutes, his wife will cover $\frac{3750}{60}$ x m.
Now$,\frac{4500}{60}\mathit{x}+\frac{3750}{60}\mathit{x}=726$
$\Rightarrow \mathit{x}=\frac{726\times 60}{8250}=5.28\mathit{m}\mathit{i}\mathit{n}$