defence exam CISF Head Constable Ministerial (HCM) & ASI Steno Mock Test Series Mathematics Number System
Let y is equal to the sum of two quantities one of which varies directly as x and the other inversely as x. If y = 6 when x = 4 and y = 10/3, when x = 3, then what is the relation between x and y?
1
y = x + (4/x)
2
y = -2x + (4/x)
3
y = 2x + (8/x)
4
y = 2x - (8/x)