Question 16

4 kilograms equals 4000 grams.

To convert kilograms to grams, one must multiply the number of kilograms by 1000, as there are 1000 grams in one kilogram. Therefore, 4 kilograms is equal to 4 x 1000, which results in 4000 grams.

A) 400

This option is incorrect because it significantly underestimates the conversion from kilograms to grams. 400 grams would only be equivalent to 0.4 kilograms, which does not accurately reflect the value for 4 kilograms.

B) 4000

This option is correct as it accurately represents the conversion of 4 kilograms into grams. By multiplying 4 kilograms by 1000, we obtain 4000 grams, which is the correct numeric value.

C) 40

This choice is incorrect as it represents an exceedingly low value when converting from kilograms to grams. 40 grams would correspond to 0.04 kilograms, which is not relevant to the original quantity of 4 kilograms.

D) 4

This option is also incorrect because it reflects the original measurement in kilograms rather than converting it into grams. 4 grams would be an impossibly small value when compared to the weight of 4 kilograms.

Conclusion

The correct answer is 4000 grams, as it is the result of converting 4 kilograms using the appropriate conversion factor of 1000 grams per kilogram. All other options significantly misrepresent the conversion, either by underestimating or failing to convert the unit completely. Thus, option B is the only accurate answer in this context.