115600 = 9000 * [1/1 + r/100] ^ 2
find the value of r
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Is it question of ci right?
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The value of "r = 258.39"
Step-by-step explanation:
115600 = 9000 * [ 1/1 + r / 100 ]^2
115600/ 9000 = [1/1 + r/ 100] ^ 2
340^2 / 94.868^2 = [1/1 + r/100] ^ 2
(340 / 94.868 ) ^ 2 = [ 1/1 + r/100 ] ^2
removing the squares on the both sides,
340 / 94.868 = 1/1 + r/100
r/100 = 340 / 94.868 - 1/1
= (340 - 94.868)/ 94.868
= 245.132 / 94.868
r/100 = 2.5839
r = 258.39.
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