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### Question Asked by a Student from EXXAMM.com Team

** Q 1649312213. ** A bike consumes `20 mL` of petrol per `kilometre`, if

it is driven at a speed in the range of `25-50 km//h`

and consumes `40 mL` of petrol per `kilometre` at

any other speed. How much petrol is consumed by

the bike in travelling a distance of `50 km`, if the

bike is driven at a speed of `40 km//h` for the first

`10 km`, at a speed of `60 km//h` for the next `30 km`

and at a speed of `30 km//h` for the last `10 km` `?`

**CDS 2016 **