List of top Quantitative Ability and Data Interpretation Questions on Linear Equations

There are 2 baskets, A and B, containing mangoes. If 10 mangoes are transferred from A to B, the number of mangoes in both baskets become equal. If 20 mangoes had been transferred from B to A instead, the number of mangoes in basket A would have become twice that in basket B. Find the original number of mangoes in basket A.

If \( 4x + 2y = 14 \) and \( \frac{5x}{2y} = \frac{5}{3} \), find the value of \( y - x \).

A person buys 18 local tickets for Rs. 110. Each first class ticket costs Rs. 10 and each second class ticket costs Rs. 3. What will another lot of 18 tickets, in which the number of first class and second class tickets are interchanged, cost?