RRB Paramedical Staff Nurse Model Paper 6

Question : 43 of 100

Marks: +1, -0

The difference between the simple interests received from two different banks on Rs. 500 in 2 yr is Rs. 2.5 The difference between their per annum rates of interest is

0.10%
0.25%
0.50%
1.00%

Validate

Solution:

Let the two rates be

R_{1}%

and

R_{2}%

per annum.
Then,

R_{1} > R_{2}

Difference

=\;{P × R_{1} × T}/{100}-\;{P × R_{2} × T}/{100}

According to the question,

\;{500 × 2 × R_{1}}/{100}-\;{500 × 2 × R_{2}}/{100}=2.5

⇒10(R_{1}-R_{2})=2.5

⇒(R_{1}-R_{2})=\;{2.5}/{10}

=0.25 \%

per annum

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