They are not counting the lines with the curve as separate lines but considering them as part of the curve only.
The label on a cereal states the following : One serving of cereal contains 17 grams of carbohydrates. This number of grams is 6% of the maximum amount of carbohydrates that a person should eat in a day. Based on this information, which of the following is closest to the maximum amount of carbohydrates that a person should eat in a day? (A) 1.02 grams (B) 2.83 grams (C) 102 grams (D) 283 grams
Mohit is selling candy bars. He has chocolate bars, nut bars, and mint bars. If a customer buys two bars, and the bars are not of the same type, how many different combinations are possible?
The six different combinations are CB and NB,CB and MB,NB and CB,NB and MB,MB and CB and finally Mb and CB. But CB and NB and NB and CB are same, same with NB,MB and MB,NB and CB,MB and MB,CB...Thus there are only 3 unique options available...
if you check you will get 3 combinations, because the question says that the two bars taken are not of the same type.