An Arab sheikh had 29 horses in his stable. After his death, it was known through his will that he wanted them to be distributed as - half to his wife, one-sixth to his elder son, one fifth to his younger son and one tenth to the jockey. The family members were perplexed as how to divide the odd number horses into half. Their neighbor, a mathematics scholar, intervened saying he would take up the job. He added one of his own horses making the number thirty. Then he distributed to the sheikh's wife (i.e., 15), to the elder son (i.e., 5), to the younger son (i.e., 6) and to the jockey (i.e., 3). All these added up to 29 and he took back his own horse. How did he manage and where is the flaw ?