Alex invested his savings in 2 parts, first part at 15% p.a. on a simple interest for 4 years and second part at 12% p.a. on a simple interest of 3 years. If interests from both the investments are equal, then the percentage of his savings in 1st part is? (CAT 2022)
A. 37.5% B. 40% C. 60% D. 62.5%
