Amit and Meghna went to New York for a 63 day holiday .Each day ,Amit
spent as many as hundred dollar bills as the remaining number of days in the
trip (excluding the current day ) ,and Meghna spent as many as hundred
dollar bills as the number of days already spent (including current day).
How much per day would they have spent together during the holiday ?  Choose the correct choice from the following answers:
A) $12,600
B) $10000
C) $6300
D) $5000
E) $4000
amith total expense is 100*(62+61......+1) and meghana is 100*(1+2+....63).   tola is 100(62+61....+1+1+2+....63) which can also be written as 100(63)+100*2*(62+61....+1)   expense per day is ((100*63)+(200*(62+61+.....1))/63 which gives 6300 result   ANSWER:$6300
<result>C</result>
Amit and Meghna went to New York for a 63 day holiday .Each day ,Amit
spent as many as hundred dollar bills as the remaining number of days in the
trip (excluding the current day ) ,and Meghna spent as many as hundred
dollar bills as the number of days already spent (including current day).
How much per day would they have spent together during the holiday ?