Question

Que 3.1) A EV battery has a capacity of 15 kWh. Assuming 0.9 DoD and 75% end of life, what is the range that the vehicle (using 80 Wh/km) can support, when the battery is new. What range will it support at the end of life? Assume, Auxiliary power used is 500 W continuously and the efficiency of motor and controller is 85% each.​

Answer 1

Answer:

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Explanation:

Let the number of currency 1 Won, 10 Won and 50 Won be x, y and z respectively.

x+10y+50z=107

Now the possible values of z could be 0, 1 and 2.

For z=0: x+10y=107

for above equation y can range from 0 - 10, taking total 11 values. that means above condition can satisfied by 11 ways.

For z=1: x+10y=57

for above equation y can range from 0 - 5, taking total 6 values. that means above condition can satisfied by 6 ways.

For z=2: x+10y=7

for above equation y can take only 1 value i.e 0. that means there is only 1 way to satisfy above condition.

Total no of ways = 11+6+1=18