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14 Sep 2022 Arithmetic

Due to continuous rise in the prices of petrol, Mr. Rohan decided to convert his existing scooter into EV by fitting a compatible kit which costs Rs. 58,500. Present petrol price is Rs. 110 per liter and mileage of existing scooter is 40 km/liter and if converted to EV, it cost Rs. 15 per charge and scooter can run 100 km per charge. If it is presumed that existing petrol, charging costs and mileage remains same over the period, then how much minimum kilometer must Mr. Rohan drive, so that his EV conversion cost gets recovered ?

OPtion

1) 23000
2) 21500
3) 20000
4) 20500
5) 22500
6) 21000
7) 23500
8) 19500
9) 22000
10) None of these

Solution

Cost/km of a petrol vehicle = 110/40 = 11/4 Rs.
Cost/km for an EV = 15/100 = 3/20 Rs.
Cost saved per km by using EV = (11/4) - (3/20) = 13/5 Rs.
⇒ For saving of Rs.13/5, travelling distance is 1 km, so to save Rs. 58500, distance to be travelled = 58500/(13/5) = 22500 km.
Correct Option 5)

Correct Option: 5 Best Solution (1)

G.S.Kantharao   2 years AGO

Cost of petrol per =₹110
Milage per litre=40Km.
EV cost per charge=₹15
Milage per Charge=100Km
For 40 Km drive EV charge=₹6
Benefit =₹110-₹6=₹104
Saving ₹104 for 40Km
So minimum drive
=₹58500*40/104=22500Km
My option is 5👈

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