Question

Which number is greater than 234,781,114?A.3.425 x 10*6B.3.425 x 10*8C.3.425 x 10*7D.3.425 x 10*5

Answer 1

The alternatives show all scientific notation, so we can get the whole number by adding the number of zeros in the power 10.

So, in the first, for example, we have:

`3.425*10^6=3.425*1,000,000=3,425,000`

As we can see, this is not bigger enough to be greater than 234,781,114. We will need to get 2 more zeros to get to the same unit place as this number.

This happens in the second alternative:

`3.425*10^8=3.425*100,000,000=342,500,000`

As we can see, we are now on the same units place as 234,781,114, so the other options will not be big enough, this is greater:

`342,500,000>234,781,114`

So, the only correct alternative is B.