Ci and si for a certain sum at certain rate of interest are rs. 220 and rs. 200. what is the principal for these interest?
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The principle amount P= 500. Let the time be 2 years. Simple Interest = 200, so, I year interest = 100, 2 year interest = 100 rate of interest r = 20%. Compound interest = 220 so I year interest = 100, 2nd year interest = 100+ 20 = 120. This kind of questions will be asked in the banking sector to test your skill.
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