Grade 12Algebra
Dear Sir, Please find answer of above mentioned question
Dear Sir, Please find answer of above mentioned question
1 Answer
Arun
Let two parts be Rs. x and Rs. (30000 - x) respectively. Let A be the 1 X 2 matrix representing two parts.
A =
Let R be the (2 X 1) matrix representing the annual interest rate in two parts
R =
AR =[ 3060 ]
.
= [3060]
0.09x + (30000 - x)(0.11) = 3060
0.09x + 3300 - 0.11x = 3060
-0.02x = 3060 - 3300
0.02x = 240
x = 240/(0.2) = 24000/2 = 12000
Ist part x = Rs. 12000 and IInd part = Rs. 18000.
A =
Let R be the (2 X 1) matrix representing the annual interest rate in two parts
R =
AR =[ 3060 ]
0.09x + (30000 - x)(0.11) = 3060
0.09x + 3300 - 0.11x = 3060
-0.02x = 3060 - 3300
0.02x = 240
x = 240/(0.2) = 24000/2 = 12000
Ist part x = Rs. 12000 and IInd part = Rs. 18000.
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algebra
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