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Question

Choose the correct relation between the numbers 2.5×106 and 25,000,000.

A
2.5×106>25,000,000
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B
2.5×106<25,000,000
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C
2.5×106=25,000,000
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D
Cannot be determined
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Solution

The correct option is B 2.5×106<25,000,000
Step 1:
Write the given numbers in scientific notation.
  • 2.5×106 is already in scientific notation.
  • 25,000,000.0 can be written in scientific notation by moving the decimal point 7 places to the left. And, we get the exponent to the base 10 as 7. Hence, 25,000,000=2.5×107
Step 2:
Compare the exponents of numbers. The larger the exponent, the greater the number.
6<7
2.5×106<2.5×107
2.5×106<25,000,000

Therefore, option (b.) is the correct one.

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