Question
X is 40% less than Y and Z is 30% more than W. If W is 25%
more than X, then which of the following is true?Solution
ATQ,
Let Y = p
X = 0.6p
Let W = q
Z = 1.3q
According to question,
q = 1.25 × 0.6p = 0.75p
So, Z = 1.3 × 0.75p = 0.975p = 0.975Y
Let A be a 3 × 3 matrix such that |A ∣ =4. Then ∣ adj(adj(A)) ∣ equals:
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