List of top Quantitative Ability and Data Interpretation Questions on Algebra asked in SNAP

Two oranges, three bananas and four apples cost ₹ 15. Three oranges, two bananas and one apple cost ₹ 10. How much will I pay for 3 oranges, 3 bananas and 3 apples?
$x+y+z=850$. If $x$ is reduced by $100$, $y$ by $25$, and $z$ by $50$, then $(x-100):(y-25)=1:2$ and $(y-25):(z-50)=5:6$. Find the original value of $x+y$.