Question

ashok has 5coins of donominations 50paise,1rupee,2ru,5ru,10 rupees ,how many different sum of money can be formed from them
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Answer 1

Answer:

Total, we have 8 coins.

Hence 2^8-1=256-1=255 possible combinations.

Now, you might get same sum with different combinations.

Like (1,2) and 3

Also, (35,10,2,3) and 50

And, (50,35,10,2,3) and 1

For the 1st case, we have 2^5 combos. So, 64 combinations give 32 values.

For the 2nd case, we have 2^3 combos. So, 16 combos give 8 values.

For the last case, we have 4 combos.

Finally, total 255-32-8-4=211 sums