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<p>The arithmetic mean (A.M) between any two numbers a and b is (a+b)/2.</p>
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<p>If we want to find a single arithmetic mean between a and b, we can set up an equation such that:</p>
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<p>A.M = (a+b)/2</p>
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<p>But since we are looking for a single A.M between a and b, we don’t know the exact value of the A.M. Therefore, we cannot solve for it using this equation.</p>
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<p>However, we can make an observation that any value between a and b will be an arithmetic mean between a and b. Therefore, we can say that there are infinitely many single arithmetic means between any two numbers a and b</p>
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