These questions are based on the table and information given below. There are 6 refineries, 7 depots and 9 districts. The refineries are BB, BC, BD, BE, BF and BG. The depots are AA, AB, AC, AD, AE, AF and AG. The districts are AAA, AAB, AAC, AAD, AAE, AAF, AAG, AAH ad AAI. Table A gives the cost of transporting one unit from refinery to depot. Table B gives the cost of transporting one unit from depot to a district.
How many possible ways are there for sending petrol from any refinery to any district?
[ A ] 63
[ B ] 42
[ C ] 54
[ D ] 378
[ E ] None of these
Answer : Option
There are 6 refineries, 7 depot, 9 districts. So total ways from refinery to district = 6 × 7 × 9 = 378