Question

The cost of 12 tins of oil weighing 12 kg is Rs. 9600. find the cost of 15 tins of oil each weighing 20 kg

Answer 1

Cost of 12 tins of oil weighing 12 kg = Rs.9600
144 kg = 9600
1 kg = 9600\144
=66.66 Rs.
Cost of tin weighing 20kg =
Rs.66.66×20=Rs.1333.2
Cost of 15 tins weighing 20 kg =15×1333.2 =Rs.19998

Answer 2

cost of 12 tins of oil weighing 12 kg = 9600

cost of 144 kg = 9600

cost of 300 kg = 9600 / 144 * 300

cost of 15 tins of oil weighing 20 kg = 19999.9999999

                                                           = 20000