Question

How many significant digits are there in the following number: 405001 Select one: a. 6 b. 5 c. 3 d. 4

Answer 1

A: 6

Step-by-step explanation:

405001 does contain zeros, which can make it confusing when trying to figure out how many significant figures there are. However, since the zeros are on the inside of the number, they are counted as "significant".

For example,

19205 contains 5 significant figures while 50,000 contains 1 significant figure.