THe question asking for which quantity is greater.
A=105; B=110.
apparently the answer should be B, but the answer in page 69 says A.
typo mistake?
Also, lots of typo mistakes in this book.
1. page 65 answer no.4: suppose to be "7/60 buckets per minute", not "7/10 buckets per minute"
2. page 60 answer no. 5: suppose to be "18 miles for this distance", not 10.
3. page 35 under "Hidden Constraints": with a 7 in the denominator - which is wrong, its a 7 in the numerator.
Hope these will be corrected in the future printed books. Otherwise it's quite frustrated while reading the wrong numbers and trying to understand the concepts..