Data Sufficiency (DS) | Re: Julio covers first r miles of his journey at x miles per hour and the

Time taken to cover first r miles =\(\frac{r}{x}\)

Time taken to cover last s miles=\(\frac{ s}{y}\)

Is\(\frac{r}{x} >\frac{ s}{y}\)

Statement 1- r = s+10
We have no idea about x andy

Insufficient

Statement 2- x= y+10

We have no idea about r ands

Insufficient

Combining both statements

Is\(\frac{s+10}{y+10} >\frac{ s}{y}\)

Since y and y+10 are positive, we can cross multiply them

\( sy+10y >sy+10s\)

y>s

We have no info whether y is greater thans

Insufficient