CUET and UG exam CUET UG 2025 Mock Test Series Mathematics Differential Calculus Applications of Derivatives
Two positive numbers x and y such that x + y = 60 and xy3 is maximum are :
1
x = 30, y = 30
2
x = 20, y = 40
3
x = 15, y = 45
4
x = 55, y = 5