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Question

In which of the following numbers, all zeros are significant?
  1. 0.00004
  2. 0.006
  3. 20
  4. 0.8

A
0.8
B
0.00004
C
0.006
D
20
Solution
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Zeros at the end or right of a number are significant provided they are on the right side of the decimal point.

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