Aman, an employer in SBI spends 60% of his monthly income on food & house rent. He invests the remaining salary in two different schemes A and B giving SI and CI respectively in the ratio 5 : 3. If he invests @ 12 p.c.p.a. for 1 year in scheme A and gets 1200 as interest also Rs. 60 more interest from scheme B for 2 years. Find the rate of interest for scheme B and the total money spent on food and house rent.