eLitmus Masterclass

Solve an eLitmus masterclass multi-pipe fill and empty problem with initial half-filled tank, leaks, and all pipes open; deduce the tank fills in 24 hours.

An efficiency problem compares work rates of A, B, C, and D, concluding that D takes 18 days and C 9 days since C is twice as efficient as D.

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solve a work-rate puzzle where x men start and one leaves daily, compared to all working together for 60 percent; show x equals 5 and one man takes 15 days.

Explore solving a basic two-variable problem with one equation by expanding brackets, simplifying to a squared residual, and identifying zero residual conditions to determine the values.

Explore higher powers by solving a series of equations in x, including terms like 1/x and x^2. Practice algebraic cancellation and substitution to find x.

solve data sufficiency problems to decide if a number is a perfect cube or a perfect square. analyze statements about a, b, c with abc=1800 and determine sufficiency.

Apply the golden rule to patterns with a green line, identifying two possibilities: Gary 0 and d 0, or Gary 1 and d 9, across columns.

Tackle a crypto-themed alphametic addition problem, assigning digits to letters and solving carry constraints. Derive values for m, e, g, s, n and explore minimum and maximum possibilities.