1c:I[1254,["7330","static/chunks/d3ac728e-78c3d5d7a486ed3a.js","5159","static/chunks/5159-48592f0bf1a47f9d.js","8175","static/chunks/8175-f84d59b9bd013e10.js","8167","static/chunks/8167-b25693a0140130f2.js","664","static/chunks/664-bceb0f356f9312eb.js","3703","static/chunks/app/practice-question/%5Bslug%5D/page-d1408559b663b83f.js"],"PracticeQuestionCard"] 1b:T4cf,{"@context":"https://schema.org","@type":"QAPage","name":"Find the principal if the interest compounded at the rate of 10% per…","url":"https://vidyalelo.com/practice-question/find-the-principal-if-the-interest-compounded-at-the-rate-of-10-percent-per-annum-for-two-years-is-rs-420-42","keywords":"practice questions, MCQ, MCQs with answers, objective questions, competitive exam questions, Competitive Exams, Competitive Exams MCQ, Competitive Exams MCQs, Competitive Exams questions, Competitive Exams practice questions, Aptitude, Aptitude MCQ, Aptitude MCQs, Aptitude questions, Aptitude practice questions, Interest","mainEntity":{"@type":"Question","name":"Find the principal if the interest compounded at the rate of 10% per…","text":"Find the principal if the interest compounded at the rate of 10% per annum for two years is Rs. 420.","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Option C. Rs. 2000. Answer & Solution Answer: Option C Solution: & Given, & Compound\\, rate,\\,R = 10\\% \\, per\\, annum & Time = 2\\, years & CI - Rs.\\,420 & Let\\,P\\, be\\, the\\, required\\, principal & A = ( P + CI ) & Amount,A = \\ P × [ 1 + ( R100 ) ]^n \\ & ( P + CI ) = \\ P × [ 1 + 10100 ]^2 \\ & ( P +…"}}}1d:T4ac,

Answer & Solution

Answer: Option C

Solution:

$$\eqalign{ & {\text{Given}}, \cr & {\text{Compound}}\,{\text{rate}},\,R = 10