Question 1 a) Reingold Company produce wireless phones. One model is the mini-phone - a basic model that is very small and slim. The mini-phone fits into a shirt pocket. Another model the inet-phone, has a larger display and is Internet-ready. For the coming year, Reingold expects to sell 200,000 mini-phones and 600,000 inet-phones. A segmented income statement for the two products is as follows: Sales Less variable costs Contribution Less direct fixed costs Segment profit Less common fixed costs Operating income Mini-phone GH000 5,000 2.400 2.600 1.200 1,400 Net-phone GH'000 36,000 30,000 6,000 960 5.040 Total GH'000 41,000 32.400 8,600 2.160 6,440 1.280 5,160 V. Required: Calculate the i. sales mix, in units, for the company ii. sales mix, in revenue, for the company iii. contribution per mix iv. weighted average contribution per mix weighted average contribution to sales ratio per mix vi. number of mini-phones and net-phones that the company must sell to break even vii. revenue that must be generated each by the two brands of phones to break even number of mini-phones and net-phones that the company must sell to earn a before-tax profit of GH 20,000 ix. number of mini-phones and net-phones that the company must sell to earn an after-tax profit of GH 20,000 (assume tax rate of 20%) revenue that must be generated each by the two brands of phones to earn a before-tax profit of GH 30,000 xi. revenue that must be generated each by the two brands of phones to earn a before-tax profit of GH 30,000 (assume tax rate of 20%) viii. X. b) Discuss the assumption of constant sales mix and how it impacts on the results obtained in a) above