RRB Group D 17-Sep-2018 Shift 2 Solved Paper

Question : 82 of 100

Marks: +1, -0

What Principal will yield

₹ 120

as Simple Interest at

6 \%

p.a. in 10 years?

Solution:

\;\text " Let us suppose, "\;

\;\text " S.I. "\;=₹ 120, \;\text " Principal "\;= {P}, {R}=6 \%, {T}=10 {yrs}

\;\text " S.I. "\;=\;{\;\text " PRT "\;}/{100}, \;\; 120=\;{\;\text " P "\; × 6 × 10}/{100}

{P}=\;{100 × 120}/{6 × 10}=₹ 200

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