Respuesta :
Answer:
25. A company has 420 workers of which 189 are male and the rest are female. What percent of the workers are female?
26. A trader bought a TV set for Birr 22000 and sold it at loss of $5 \%$. what was the selling price?
27. Mussa received a $6 \%$ pay raise. He now earns Birr 8268 , what was his salary prior to the salary increase?
28. Birr 6000 is invested at a rate of $5 \%$ compound interest compounded annually, Find
a. the amount at the end of 2 years.
b. the interest at the end of 2 years.
29. A person wants to buy a car from TOYOTA Company. If the price car including VAT is Birr 5,750,000 then,
a. what is the price of car before VAT?
b. what is the value of VAT?
30. Calculate the income tax on salary of Birr 5200 .
31. Derive a formula to calculate income $\operatorname{tax}$ on $\operatorname{Birr} x$, in terms of $x$. Where $x$ falls on the interval 5250 to 7800 .
