A man invests an amount of Rs. 1,05,750 at simple interest in the name of his son, daughter and his wife in such a way that they get the same interest after 3, 4 and 5 years, respectively. If the rate of interest is 5% per annum. then the amount invested for the wife is:
1
Rs. 30,000
2
Rs. 25,000
3
Rs. 28,000
4
Rs. 27,000