1. Find the percentage profit if the trainers are sold for £50 each. 2. Find the percentage loss if the trainers are sold for £35 each. 1. Total cost of trainers: 20 × £40 = £800. Total ...

The percentage change can be calculated to find out the profit or loss an item has made. Percentage change is calculated by dividing the difference between the two amounts by the original amount.

The RRB JE maths section consists of topics such as percentage, profit and loss, averages, geometry, mensuration, etc. Below, we have provided a detailed breakdown of the syllabus, preparation ...