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canuckclint
- Master | Next Rank: 500 Posts
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Statement 1:canuckclint wrote:Please solve:
Makes no sense to me.
Payment was made on 21st day. That means for first 20 days balance was $600 each day and from 21st day to 30th day balance was $600 - $300 = $300.
Avrage daily balance for 30 days period = ($600 x 20 (days) + $300x10 (days))/30............................... sufficient
statement 2.
Avrage balance for 25 days cycle was $540. That means $300 was paid some where in between from day 1 to day 25th. We can assume that it was paid after X number of days.
($600* X (days) + $300* (25-X) days)/25 = $540
solve for X ..
hence sufficent ,..
hence D .
Hope that helps
