P naira invested for 4 years invested for 4 years at r% s...
P naira invested for 4 years invested for 4 years at r% simple interest per annum yields 0.36 p naira interest. Find the value of r
119
149
9
11
Correct answer is C
I = PRT100
where r = r% p.a; I = 0.36p
0.36p = P×r×4100
0.36×1004 = r
r = 9
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