PSLEXavier had a number of rings for sale. He sold a total of 320 rings on Friday and Saturday. On Sunday, he sold
15 of the remainder. He was left with 16% of the rings he had at first. How many rings did he have at first?
Friday |
Saturday |
Remainder |
320 |
Sunday |
Left |
|
|
1 u |
4 u |
80%
|
4% |
16% |
Fraction of the remainder left
= 1 -
15 =
45Percent of total rings sold on Sunday
= 16% ÷ 4
= 4%
Percent of total rings sold on Friday and Saturday
= 100% - 16% - 4%
= 80%
80% = 320
1% = 320 ÷ 80 = 4
Total number of rings at first
= 100%
= 100 x 4
= 400
Answer(s): 400