IPMAT Indore 2022 — Question 6

Aruna buys apples at INR 20 each and mangoes at INR 25 each. If she sells all apples at 10% profit and all mangoes at 20% loss, no profit/no loss. If instead apples at 20% loss and mangoes at 10% profit, loss is INR 150. Number of apples is_________.