Question

The no. of zeros in ∠1000 is

• A. 250
• B. 249
• C. 100
• D. 200

Answer 1

Answer: (B)

249

Answer 2

Exponent of 10 is same as exponent of 5.

$x = \left\lbrack \frac{1000}{5} \right\rbrack + \left\lbrack \frac{1000}{25} \right\rbrack + \left\lbrack \frac{1000}{125} \right\rbrack + \left\lbrack \frac{1000}{625} \right\rbrack$.

= 200 + 40 + 8 + 1 = 249.