1f:["$","div",null,{"className":"p-6 md:p-8","children":["$","h1",null,{"className":" prose prose-lg max-w-none break-words prose-headings:font-bold prose-headings:text-slate-900 prose-p:text-slate-700 prose-p:leading-relaxed prose-strong:text-slate-900 prose-ul:list-disc prose-ol:list-decimal prose-li:text-slate-700 mb-4 [&_table]:w-auto [&_table]:max-w-full [&_table]:border-collapse [&_th]:border [&_th]:border-slate-300 [&_th]:px-3 [&_th]:py-2 [&_th]:text-left [&_td]:border [&_td]:border-slate-200 [&_td]:px-3 [&_td]:py-2 [&_table]:my-4 overflow-x-auto","dangerouslySetInnerHTML":{"__html":"

₹ 9000 becomes ₹ 18000 at simple interest in 8 years. Find the rate per cent per annum.

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Here, Principal = ₹ 9000

Amount = ₹ 18000

Interest = Amount - Principal = ₹ 18000 - ₹ 9000 = ₹ 9000

R = (100×I)/(P×T)=(100×9000)/(9000×8)

=25/2% or 12 1/2%

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