UP TGT Mathematics Commercial mathematics Test Series - Part 2
The simple interest on a sum of money is 4/9 of the principal. Find the rate percent per annum if the number of years is...
Type: MCQ • Marks: 1
The simple interest on a sum of money is 4/9 of the principal. Find the rate percent per annum if the number of years is numerically equal to the rate percent per annum.
Options
A. 1) 6.67%
B. 2) 8%
C. 3) 6%
D. 4) 5%
Explanation
SI = (4/9) P, and T = R.
(4/9) P = (P * R * R) / 100 => R^2 = 400 / 9 => R = 20 / 3 = 6.67% p.a.
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