Wanjiku spent ¼ of his net January salary on school fees. He spent ¼ of the remainder on electricity and water bills. He then spent 1/9 of what was left on the transport. If finally had sh. 3,400, what was his January salary?

Answer 1

Salary = $X.
X-x/4 = 3x/4.

3x/4-(1/4)3x/4 = 3x/4-3x/16 = 12x/16-3x/16 = 9x/16.

9x/16-(1/9)9x/16
9x/16-(1/9)9x/16 = 9x/16-x/16 = 8x/16 = x/2.

x/2 = 3400, X = $6800.

Answer 2

Sure