John spent $53 for a helmet.

He spent `3/11` of his remaining money on buying some shirts and handkerchieves.

After his purchases, he found that he had spent half of what he had at the beginning.

The amount of money spent on the shirts was five times the amount he spent on the handkerchieves.

(a) What fraction of his money did he spend on the helmet?

(b) If he bought 5 handkerchieves, how much did he pay for each handkerchief?

Notes to student:

1. If the question above has parts(e.g. (a) and (b)), given that the answer for part (a) is 10 and the answer for part (b) is 12, give your answer as:10,12
2. Round your answer off to 2 decimal places
3. If your answer to the above is a fraction, given that the answer is `a/b`, type your answer as a/b