Question

Jassi inherited 12000.00. She invested part of it
at 10% and the rest at 12% p.a. simple interest. Her
annual income from these investments is 1280.00.
How much did she invest at each rate.


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Answer 1

Answer:

suppose that invested x Rs.at 10%

then invested the rest (12000-x) at 12%

So we have the equation

10x/100+12(12000-x)/100=1280

10x+144000-12x=128000