In ired person has 70,000 to invest and tuinvestment. First type of bond yields an annuasecond ope of bond yields 10% per annum. As per norma 30.000 by the first type and not more than investment, so as to get maximum returns, after one vegyno to invest and two types of bonds are available in the market forne of hond vields an annual income of 8% on the amount inper annum. As per norms, he has to invest minimum of 10000 nore than 30,000 in the second type. How should he plan maximum returns, after one year of investment?