Q 1- If Sardar Preetpal Singh's taxi is 14 years old and has a fuel efficiency of 12 km/litre of fuel, find his profit in a run from Howrah Station to Park Street (a distance of 7 km) if the stoppage time is 8 minutes. (Assume he owns the taxi)
(a) 32.25 rs (b) 40.85 rs (C) 34.25 rs (d) 42.85 rs
Solution :- Meter reading for first 2 kms is fixed at 10 rs.
For additional kms the meter reading changes by 5 rs.
If taxi is boarded and it doesn't move, meter reading for first 10 mins is fixed at 10rs.
For additional mins the meter reading changes by 1 rs.
Amount of distance traveled = For first 2 kms + For rest of the kms
= 10 + 25
= 35 rs.
Meter reading = Amount of time waited + Amount of distance traveled
= 8 + 35
= 43 rs.
Customer pays 20% over meter reading.
Amount Customer paid = 43*1.2
= 51.6
Cost of running = Fuel efficiency
= 7*1.25 (For 7 kms and petrol rate 15 rs/litre)
= 8.75 (petrol rs 1.25 rs/kms)
Profit = 51.6 - 8.75
= 42.85 rs.
Hence , (d) 42.85
