Grades 11-12 Video Solutions 2020-Level 11&12 Video Solutions 2020

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Video Summary

The problems revolve around varied mathematical and logical topics. <br /><br />1. Problem 1 involves calculating the sum of the last two digits of a multiplied sequence, resulting in 8.<br /><br />2. Problem 2 involves calculating the new distance an ant travels after obstacles are added to its path, resulting in 9 meters.<br /><br />3. Problem 3 examines a number line problem where values are compared based on the product of points, resulting in the choice 'Q'.<br /><br />4. Problem 4 requires using a pie chart to determine the percentage of students using mopeds, resulting in 6%.<br /><br />5. Problem 5 involves evaluating a cumulative addition of values, resulting in a sum of 24.<br /><br />6. Problem 6 involves evaluating a complex algebra problem involving powers, resulting in 7070.<br /><br />7. Problem 7 evaluates a sequence of increasing numbers yielding the largest value for 'B', resulting in 1000.<br /><br />8. Problem 8 involves equations denoting animal weight, resulting in the final equation KM/DE.<br /><br />9. Problem 9 analyzes the probability of dice outcomes, resulting in 1/3 probability.<br /><br />10. Problem 10 demands recognizing patterns in a number sequence, determining which can't be divisible by 3, with the answer being 6n-1.<br /><br />11. Problem 11 evaluates areas within geometric figures showing how to deduce the value 'B-R' is invariant, resulting in the same quantity being present.<br /><br />The approach typically involves breaking down math equations, applying probability rules, deductions based on pie charts, and evaluating geometry and algebra problems within hypothetical and practical contexts. Solving such problems effectively demonstrates an understanding of mathematical operations, assumptions, and logical deductions ensuring correct result derivation.

Keywords

mathematics

logic

sequence

distance

number line

pie chart

cumulative addition

algebra

probability

patterns

geometry

deductions