SBI PO Prelims 4 Nov 2023 Shift 2 Paper

P and Q invested in a business with Rs. 16,000 and Rs. 20,000 respectively . After x months, R joined them with Rs. 24,000 while Q left x months before the end of the year. They decide to split the profits at the end of the year, If they split the profit in the following proportions: 48 : 35 : 42. What is the value of x?