The cost of two dozen apples and three dozen bananas is Rs 136. The cost of 5 dozen bananas and one dozen apples is Rs 110. What is the price of one dozen bananas? (a) Rs 16     (b) Rs 18     (c) Rs 20    (d) Rs 24    (e) None of these

If 16 dozens bananas cost Rs360. then how many bananas can be bought in Rs60 ?

The cost of 1 dozen bananas is Rs. 30. The cost of 6 oranges is Rs. 18. The ratio of the cost of a banana to the cost of an orange is

The cost of 4 dozen pencils, 3 dozen pens and 2 dozen erasers is Rs. 60. The cost of 2 dozen pencils, 4 dozen pens and 6 dozen erasers is Rs. 90 whereas the cost of 6 dozen pencils, 2 dozen pens and 3 dozen erasers is Rs. 70. Find the cost of each item per dozen by using matrices.

If the cost of bananas is increased by rupees 10 per dozen,one can get 3 dozen less for rupees 600. Find the original cost of one dozen of bananas.

The cost of 1 dozen pens is Rs. 24. Find the cost of 30 pens.