Five horses, two people, three dogs and seven chicken have a total of ________ legs.
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46
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50
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48
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52
To determine the total number of legs, we need to multiply the number of each animal by the number of legs each animal has, and then add them all together.
Given that:
- Each horse has 4 legs
- Each person has 2 legs
- Each dog has 4 legs
- Each chicken has 2 legs
We can calculate the total number of legs as follows:
Number of horse legs = 5 horses * 4 legs per horse = 20 legs Number of people legs = 2 people * 2 legs per person = 4 legs Number of dog legs = 3 dogs * 4 legs per dog = 12 legs Number of chicken legs = 7 chickens * 2 legs per chicken = 14 legs
Total number of legs = 20 + 4 + 12 + 14 = 50 legs
Therefore, the correct answer is B. 50.
Horses have 4 legs each: 5 × 4 = 20. People have 2 legs each: 2 × 2 = 4. Dogs have 4 legs each: 3 × 4 = 12. Chickens have 2 legs each: 7 × 2 = 14. Total: 20 + 4 + 12 + 14 = 50. This matches the marked answer; the other options (46, 48, 52) result from small arithmetic slips (e.g., miscounting one animal group), so 50 is correct.