Under the initiative by Pune Mahanagar Parivahan Mahamandal Limited, 140 routes in the city have been coded using how many different colours?

Under the initiative by Pune Mahanagar Parivahan Mahamandal Limited, 1

1.	Under the initiative by Pune Mahanagar Parivahan Mahamandal Limited, 140 routes in the city have been coded using how many different colours?
A.	8
B.	10
C.	12
D.	15
E.	18
Answer» E. 18