b Consider the set of coins 1 5 11 Does the above strategy a

(b) Consider the set of coins 1, 5, 11. Does the above strategy always give the best solution?

yes the above strategy always give better solution.If we increase the value of coin then number of coins usage will decrease for any amount if we have 50 value coin then no of coins usage decreased by 1 for the above one of 25 coins