Waec Model Questions Vol1 2018 Commerce Question 31

A company wants to run an advertising campaign using TV, radio and newspaper. The estimated audience (in thousands) reached by each medium is: TV 120, Radio 80, Newspaper 60. Surveys show that 30 % of the TV audience also listens to radio, 20 % of the TV audience reads the newspaper, and 25 % of the radio audience reads the newspaper. Moreover, 10 % of the TV audience is exposed to all three media. The company plans to purchase 2 TV spots at ₦500 000 each, 3 radio spots at ₦150 000 each and 4 newspaper ads at ₦200 000 each. If the total cost exceeds ₦1 500 000, a 10 % discount is given on the amount exceeding ₦1 500 000. What is the final cost per thousand unique audience reached, rounded to the nearest naira?