Solve problems using substitution (Mathematical Operations): If A B, B C and C D, then which of the following conclusions is definitely wrong?a)A Db)A Cc)D Ad)B DCorrect answer is option 'C'. Can you explain this answer?

Question

Solve problems using substitution (Mathematical Operations): If A > B, B > C and C > D, then which of the following conclusions is definitely wrong?a)A > Db)A > Cc)D > Ad)B > DCorrect answer is option 'C'. Can you explain this answer?

Answer

If A = 4 and B = 2, find the value of 3A - 2B.

Substituting the values of A and B into the equation, we have:

3(4) - 2(2)
= 12 - 4
= 8

Therefore, the value of 3A - 2B is 8.

Answer

Given: A > B, B > C and C > D

After combining the operators,

we get: A > B > C > D

Now, checking the options:

Option A: A > D → True (As, A > B > C > D gives A > D)

Option B: A > C → True (As, A > B > C > D gives A > C)

Option C: D > A → False (As, A > B > C > D gives A > D)

Option D: B > D → True (As, A > B > C > D gives B > D)

So, Option C, D > A is definitely wrong.

Hence, the correct answer is "Option c".

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