Help ramu problem in array 1d

In this problem c1 and c2 is cost for some rikshaw and cabsso what is meaning of some rikshaws as let therecare 3 rikshaw r1 and r2 and r3 so we can use only some rikshaws what it means please reply

hey mayur, here some means one rickshaw or one cab.
c1 is cost for one ride on one rickshaw or cab
c2 is cost for unlimited ride on one rickshaw or one cab
c3 is cost for unlimited ride on all rickshaw or all cab
c4 is cost for unlimited ride on all rickshaw and all cab.
If you still don’t understand then watch the following tutorial:

But why here some is used please explain why one is not used directly

some here also means particular rickshaw or cab or we can say one.
now you have understood the problem so solve it by that concept only.

I have done the ques. But i want to know that As let if there are three cabs c1,c2,c3 so some cabs may represent that one ride on both c1 and c2 cost c1 ruppess how it represent one cab instead cN you please explain

Mayur you are just wasting your time and not getting the concept they want you to understand.
for now consider it a grammatical mistake. and try other questions.

Ok thanks sir for reply