$891 is to be divided among a certain number of people. Half of the people received $7 each,
512 of the people received $9 each and the rest received $12 each. How many people are there altogether?
Fraction of the people who received $12 each
= 1 -
12 -
512= 1 -
612 -
512=
112
|
$7 |
$12 |
$9 |
Total |
Number |
6 u |
1 u |
5 u |
12 u |
Value |
7 |
12 |
9 |
|
Total value |
42 u |
12 u |
45 u |
99 u |
Total amount received by the people
= 42 u + 12 u + 45 u
= 99 u
99 u = 891
1 u = 891 ÷ 99 = 9
Total number of people
= 6 u + 1 u + 5 u
= 12 u
= 12 x 9
= 108
Answer(s): 108