Advanced MathEasyLegs on cats and birds
Advanced Math practice question
A farm has c cats and b birds. Which expression gives the total number of legs on all the cats and birds?
- A. 4c + 2bCorrect
- B. 6cb
- C. 2c + 4b
- D. c + b + 6
Answer: A. 4c + 2b
Each cat has 4 legs and each bird has 2.
Why the other answers are wrong
- B. 6cb
- Multiplying the counts makes no sense.
- C. 2c + 4b
- The legs are attached to the wrong animals.
- D. c + b + 6
- The counts must be multiplied by legs, not added to 6.
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