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UP TGT Mathematics Commercial mathematics Test Series - Part 2

The simple interest on a sum is 1/9 of the principal, and the number of years equals the rate percent. Find the rate.

Type: MCQ • Marks: 1
The simple interest on a sum is 1/9 of the principal, and the number of years equals the rate percent. Find the rate.
Options
A. 4
B. 3.33
C. 5
D. 2.5
Explanation
P/9=P×R×R/100. Hence R²=100/9 and R=10/3=3.33%.
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