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Q.

Is it true that the product of the number $423 × 158$ to the nearest hundred is 8000?

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a

True

b

False

answer is B.

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Detailed Solution

Rounding off 423 to the nearest hundred;
The number placed at ten's digit is 2 and smaller than 5.
Therefore, after rounding off 423 to the nearest hundred it is equal to 400.
Rounding off 158 to the nearest hundred;
The number placed at ten's digit is 5.
Therefore, after rounding off 158 to the nearest hundred it is equal to 200.
Calculate the product of the two numbers,

400 × 200 = 80000

Therefore, the product of the two numbers is 80000.
Thus, the statement is false.
Hence option 2 is correct.

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