SOLUTION: Syafiq, a college student earned RM 5800 during summer vacation working as a waiter in
a popular restaurant, BUDU. Syafiq invested part of the money at 10% and the rest at 6%.
Algebra ->
Finance
-> SOLUTION: Syafiq, a college student earned RM 5800 during summer vacation working as a waiter in
a popular restaurant, BUDU. Syafiq invested part of the money at 10% and the rest at 6%.
Log On
Question 1172052: Syafiq, a college student earned RM 5800 during summer vacation working as a waiter in
a popular restaurant, BUDU. Syafiq invested part of the money at 10% and the rest at 6%.
If Syafiq received a total of RM 444 in interest at the end of the year, how much was
invested at 10%? Answer by ikleyn(52781) (Show Source):
Let x = how much was invested at 10%.
Then 5800-x was invested at 6%.
The total interest equation is
0.1x + 0.06(5800-x) = 444.
From the equation
x = = 2400. ANSWER
Solved.
-----------------
It is a standard and typical problem on investments.
You will find there different approaches (using one equation or a system of two equations in two unknowns), as well as
different methods of solution to the equations (Substitution, Elimination).
