SSC GD Constable 6 Feb 2025 Shift 1 Paper

Section: Elementary Mathematics

Question : 47 of 80

Marks: +1, -0

Varun invests a sum of ₹5400 and Ashish invests a sum of ₹9400 at the same rate of simple interest per annum. If, at the end of 3 years, Ashish gets ₹960 more interest than Varun, then find the rate of interest per annum (in percentage).

Validate

Solution:

Simple Interest

( SI )=\;{ P × R × T }/{100}

Calculation:
Interest of Ashish - Interest of Varun = ₹960

\;⇒ \;{9400 × R × 3}/{100}-\;{5400 × R × 3}/{100}=960

\;⇒ \;{3 R}/{100} ×(9400-5400)=960

\;⇒ \;{3 R}/{100} × 4000=960

\;⇒ 12000 R=96000

\;⇒ R=\;{96000}/{12000}

\;⇒ R=8 \%

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