Challenge R6: 5 Hours over 5 Days
Challenge R7: 9 Hours over 9 Days
Challenge R8: 6 Hours over 6 Days
Challenge R9: 5 Hours over 5 Days
Challenge R10: 4 Hours over 4 Days
Challenge R11: 5 Hours over 5 Days
This relaxed timeline given is to give you the maximum chance to achieve the Performance Discount.
From a completion perspective if a student preparing for a particular exam, can complete the Challenges faster. For instance a student who can find 4 hours a day can finish each Challenge here within a day, or so.
That is 6 days for the topic: Quantitative Methods.