List of top Applied Mathematics Questions on Algebra asked in CBSE CLASS XII

A runs $\dfrac{3}{2}$ times as fast as B. If A gives B a start of 40 m, how far must the winning post be from the starting point, so that A and B reach at the same time?

A boat goes 3.5 km upstream and then returns. Total time taken is 1 hour and 12 minutes. If the speed of the current is 1 km/h, then find the speed of the boat in still water.