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How many trailing zeros will (2^6 \times 5^4) have?
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Answer and explanation
Correct answer: 4
Step 1: A trailing zero is formed by a pair of (2) and (5). Step 2: The exponent of (2) is (6) and of (5) is (4), so (4) pairs are possible. Step 3: For trailing zeros, always take the smaller exponent.
Frequently asked questions
What is the correct answer to this question?
4
Why is this the correct answer?
Step 1: A trailing zero is formed by a pair of (2) and (5). Step 2: The exponent of (2) is (6) and of (5) is (4), so (4) pairs are possible. Step 3: For trailing zeros, always take the smaller exponent.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Prime Factorisation.
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