please answer this

Hi Siva,

Initial count 10 coins (6 tails, 4 heads)

Final count 9 coins (5 tails, 4 heads)

Now let's list out various possibilities of flipping

Case 1: Out of 7 flipped coins, let us assume the person flipped 6 tails and 1 head ==> the resulting count is (1 tail, 9 heads), which is not a possible case as the final count mentioned in the question was different.

Case 2: Out of 7 flipped coins, let us assume the person flipped 5 tails and 2 heads ==> the resulting count is (3 tail, 7 heads), which is not a possible case as the final count mentioned in the question was different.

Case 3: Out of 7 flipped coins, let us assume the person flipped 4 tails and 3 heads ==> the resulting count is (5 tail, 5 heads), which is a possible case as the final count mentioned in the question was similar.

Case 4: Out of 7 flipped coins, let us assume the person flipped 3 tails and 4 heads ==> the resulting count is (7 tail, 3 heads), which is not a possible case as the final count mentioned in the question was different.

As we can see, only case 3 is possible. Therefore, the coin would show a head.

Hope this helps you.

Thank you.