Multiple choice general knowledge math & puzzles

Of 1,000 dogs, 72% are male. Among the males, 3 out of 5 were over the age 5. How many of the dogs were males age 5 or older?

  1. 432

  2. 424

  3. 144

  4. 484
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

72% of 1000 dogs = 720 male dogs. Among males, 3 out of 5 (60%) are over age 5. 60% of 720 = 0.6 × 720 = 432. This is a straightforward percentage calculation requiring two steps.

AI explanation

To answer this question, we need to follow the given information step by step.

First, we are told that 72% of the 1,000 dogs are male. To find the number of male dogs, we can multiply 1,000 by 0.72:

Number of male dogs = 1,000 * 0.72 = 720

Next, we are told that among the male dogs, 3 out of 5 are over the age of 5. To find the number of male dogs age 5 or older, we can multiply the number of male dogs by the fraction 3/5:

Number of male dogs age 5 or older = 720 * (3/5) = 432

Therefore, the correct answer is A) 432.

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