I have a query . We know that equilibrium condition will be satisfied when MUx =Px. In this case ,when consumer consumes 4 ice creams then MUx = 2 = Px. Then why CONSUMING 4 UNITS is not point of equilibrium.. Please answer the whole question in detail and the question given in picture

Example 7 The following schedule gives the number of ice-creams consumed and the total utility derived from each level of consumption. Given that the price of ice-cream is fixed at ₹2 per unit, determine the optimal level of consumption, assuming MU of a rupee is 2 utils. Give reasons.

No of Icecreams	1	2	3	4	5	6	7	8
TU (Utils)	5	9	12	14	15	15	14	12