Who engaged with whom over which consecutive years (contracts/training spans)

CAT has tested this idea 11 times across 2 papers, from 2020 to 2025. 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 2025 Slot 2 · DILR Q10	Four musicians train under three gurus, 2-4 year spans	D
CAT 2025 Slot 2 · DILR Q11	Four musicians train under three gurus, 2-4 year spans	B
CAT 2025 Slot 2 · DILR Q12	Four musicians train under three gurus, 2-4 year spans	A
CAT 2025 Slot 2 · DILR Q13	Four musicians train under three gurus, 2-4 year spans	C
CAT 2025 Slot 2 · DILR Q14	Four musicians train under three gurus, 2-4 year spans	4
CAT 2020 Slot 1 · DILR Q5	Four institutes, four vendors, contracts over 2010-2019	D
CAT 2020 Slot 1 · DILR Q6	Four institutes, four vendors, contracts over 2010-2019	D
CAT 2020 Slot 1 · DILR Q7	Four institutes, four vendors, contracts over 2010-2019	A
CAT 2020 Slot 1 · DILR Q8	Four institutes, four vendors, contracts over 2010-2019	A
CAT 2020 Slot 1 · DILR Q9	Four institutes, four vendors, contracts over 2010-2019	D
CAT 2020 Slot 1 · DILR Q10	Four institutes, four vendors, contracts over 2010-2019	C

Part of Scheduling (41 questions since 2017).