Question

Principal = 5200, SI = 975 and time = 2 1/2 years
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Answer 1

We know that, R = (100 × SI) / (P × T) = (100 × 975)/ (5200 × (5/2)) = (100 × 975 × 2) / (5200 × 5) = (1 × 975 × 2) / (52× 5) = (195 × 1) / (26× 1) = (195/26) = 7.5 = 7 ½ ANS..

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Answer 2

⠀⠀⠀⠀⠀$\huge \bold \purple{AnSwEr:-}$

⠀⠀⠀⠀⠀⠀⠀Given:-

Principal=5200, S.I=957, and the time=2whole 1/2

⠀⠀⠀⠀⠀⠀⠀To find:- Rate??

Applying the formula of simple interest:-

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⠀⠀⠀$\sf \pink{simple \: interest = p \times r \times t \: by \: 100}$

⠀⠀⠀⠀$\implies \sf \green{975 = 5200 \times r \times 5 \: by \: 2}$

$\implies \sf \pink{97500 = 5200 \times r \times 5 \: by \: 2}$

⠀⠀⠀$\implies \sf \green{r = 97500 \times 2 \: by \: 5200 \times 5}$

⠀⠀⠀$\implies \huge \red{7.5}$ ←Ans

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