Question

A person spends $560,000 on a total of 3 properties. the first property's value is the sum of the other two properties. the second property is three times the value of the third property. how much does each property cost?

Answer 1

3 units + 1 unit = 4 units (the sum of 2nd and 3rd)
4 units + 4 units = 8 units (sum of all properties)
*The other 4 units comes from the first property as the first property's value is the same as the sum of the 2nd and 3rd.*
8 units = $560 000
1 unit = $560 000÷8 = $70 000 (3rd)
3 units = 3x$70 000= $210 000 (2nd)
$210 000 + $70 000=$280 000 (1st)

Ans: 
1st property costs $280 000.
2nd property costs $210 000.
3rd property costs $70 000.