Mr Mangena invested an amount of R13890 divided in two different schemes A and B, at the simple interest rate of 14% per annum and 11% per annum respectively. If the total amount of simple interest earned in three years is R5 508. What was the amount invested in scheme B
given information
invested amount = R13890
simple interest rate = 14%
scheme B simple interest = 11%
simple interest earned in three years = R5508
the invested amount in scheme A be RS x and that in scheme B be (R13890- x)
To compute the Sum invested in scheme B the expression will be
"= [X \\times 14 \\times3] 100 + [(R13890 -x) \\times 11\\times3] 100 = R5508"
"42x - 33x = R550800 -(R13890 \\times 33)"
9x = R550800 - R458370
9x = R92430
"x = \\frac{R92430 }{9}"
x = R10270
therefore, the invested amount in scheme B is
= R13890 - R10270
= R3620
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