Estimate the following products using general rule:

5281 $\times$ 3491

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15000000

15000

150000

150

answer is A.

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Detailed Solution

Concept- We need to estimate here the given value by rounding off using the general rule.
To find estimated product, we multiply this rounded off numbers, as follows:

5000 \times 3000 = 5 \times 1000 \times 3 \times 1000 = 5 \times 3 \times 1000 \times 1000

= 15 \times 1000000 = 15, 000, 00

So, the estimated product of 5218 and 3491 is 15000000.
Hence, the correct answer is option 1.

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