prep test IR
As per the input data, r =4x+8y/x+y =5, solves to x=3y
out of the answer choice, value matching this condtion is Y=32 and X=96
loan X has a principal of $10000x and a yearly simple interest rate of 4%. loan y has a principal of $10000y and a yearly SI rate of 8%. loan x and y will be consolidated to form loan Z with a principal of $(10000x + 10000y) & a yearly SI rate of r%, where r = 4x+8y/x+y.
select one value of x and one value of y corresponding to a yearly interest rate of 5% for the consolidated loan.
21
32
51
64
81
96
pls help me solve this