A body, moving at 20 ms accelerates uniformly at 2.5 ms for 2 seconds, It continues
the journey at this speed for 8 seconds, before coming to rest t seconds with a uniform   retardation. If the ratio of acceleration to retardation is 3:4                

The (a) part was satisfactorily handled by the few candidates that attempted it but the (b) part was badly handled. They were expected to sketch the velocity - time graph and use it to calculate.the total distance covered. Very few candidates were able to do this.