Selling parts at different prices, rest as a mixture, to hit an overall profit

CAT has tested this idea 4 times across 4 papers, from 2018 to 2022. Solve one, and the others are the same method with different numbers or wording, which is why repeated concepts are the most efficient thing to practise.

Question	What it asks	Answer
CAT 2018 Slot 1 · QA Q7 near-repeat	walnuts and peanuts, some sold, some lost, rest mixed at 25% profit	C
CAT 2022 Slot 1 · QA Q14 near-repeat	syrup and juice, parts sold, rest mixed for 64% overall profit	160
CAT 2021 Slot 2 · QA Q22	three teas mixed; one-sixth sold, price for rest for 50% profit	B
CAT 2020 Slot 3 · QA Q14	sugar sold at marked, discount, wastage; raise price for 15% profit	D

Part of Percentages & Profit-Loss (46 questions since 2017).