Three persons X, Y and Z investing in a business, ratio of initial investment of Y and Z is 2:3. X and Y started the business and after 4 months Y withdrew Rs. 24000 and X withdrew Rs. 30000 and Z joined the business. Due to work load in business they want to hire another partner. They found person D, but person D is not able to invest in business. D join the business with a condition that there is no share of D in profit but there is monthly salary of Rs. 6000 which is paid by Y and Z equally from their profit share at the end of one year. If Z gets Rs. 1.44 lakhs after paying to D, out of total profit of Rs. 5.31 lakhs, and initial investment of X is 25% more than that of Y, find investment of Y in the business?