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..

haas_mba07 wrote:

Prof,

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?

Thanks/

Professor wrote:

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.