APPLE when ordered 'three' and is asked to take out from the basket one mango and orange when ordered 'four'. Put in is REPRESENTED by "+1" and TAKEN out by "-1".Drawing the table from the above INFORMATION:Order SequenceNo of mangoNo of orangeNo of apple1+1 2 +1 3 +13 +12 +1 1+1 4-1-1 2 +1 3 +11+1 4-1-1 2 +1 2 +1 3 +13 +11+1 4-1-1 1+1 1+1 3 +12 +1 3 +14-1-1 Total orange at the end = +1 + 1 + 1 + 1 + 1 + 1 - 1 - 1 - 1 - 1 = 6 - 4 = 2 Hence, the correct answer is "2".