its a trap. if read the question carefully, you will never get 15.
lets take 3. the next is 4. so total = 12, which is smaller than 15.
lets try with 4, next is is 5. so total = 20
hope that helps. pretty tricky..
Can you clarify why 4 is the min?
The problem is a bit vague when it comes to the integers on the cards. Are the integers from 2-9 or 2-13? Why is the min 4?
a card cannot have more than 13 number. it says between 15 and 200.
the max is 13x14=172 and the min 4x5=20. both are in between the given range.
if we try to get 15 and 200, we fall on trap. we never get 15 and 200.
so its clear C.