Maths MCQs, PLANNING OFFICER/ DEPUTY DISTRICT OFFICER (PLANNING) (BPS-17)P & D Department. 2014, PPSC Solved Past Papers MCQsIf the cost of 1 dozen mangoes is Rs 20 what is the cost of 3 1/2 dozen mangoes?A. Rs 85 B. Rs 49 C. Rs 68 D. Rs 70 Find the average of 49,51,29A carton contains 10 boxes each box containing one dozen cubes. How many cartons are needed to fill 960 cubes.