Answer:
M = 35, Px = 4
Maximum of goods X = M/Px = 35/4 = 8.75 units. Thus, the maximum number of units of good X consumer can buy without offer is 8.75 units
Now if we are to bundle 8 units of Good X as 1 unit, then the price of this unit will be = $4 + 75%of$4 = 4 + 3 = $7
Maximum quantity of this bundle that can be bought is 35/7 * 2 = 10 units. So, that means we can buy 10 units of Good X