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  • If 60% of a is equal to 120% of b, then 2a - 4b = ?
Multiple choice general knowledge math & puzzles

If 60% of a is equal to 120% of b, then 2a - 4b = ?

  1. 2a

  2. 0.5a

  3. 0

  4. 3a

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

If 0.6a = 1.2b, then a = 2b. Substituting a = 2b into the expression 2a - 4b gives 2(2b) - 4b, which is 4b - 4b = 0. Therefore, the result is always zero regardless of the values of a and b.

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