Question

$(19000{)}^2$ will contain how many zeroes at the end?

• A. 4
• B. 6
• C. 5
• D. 3

Answer 1

The correct option is B 6

$(19\times 1000{)}^2=19\times 19\times 1000\times 1000=19\times 19\times 1000000\Rightarrow 6zeroes$
OR
If a number ends with 'n' zeroes, its square ends with '2n' zeroes.