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Each of the question below consists of a question and three statements number I, II and III given below it. You have to decide whether the data provided in the statement are sufficient to answer the question.Find the rate of simple interest per annum.Statement I. Silky borrowed Rs. 18,000 from Nimi for 2 years on simple interest.Statement II. Silky returned Rs. 23,400 to Nimi at the end of 2 years and settled the loan.Statement III. A sum of money becomes triple in 40/3 years on simple interest.1. The data in statement I alone is sufficient to answer the question, while the data in statement II and III alone are not sufficient to answer the question.2.The data in statement II alone is sufficient to answer the question, while the data in statement I and III alone are not sufficient to answer the question.3. The data in statement I and II together or in statement III is sufficient to answer the question.4. The data in all the statements I, II, and III are not sufficient to answer the question.5. The data in all statements I, II, and III together are necessary to answer the question. |
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Answer» Correct Answer - Option 3 : The data in statement I and II together or in statement III is sufficient to answer the question. Calculation: For Statement I: Principal = 18,000 Interest = (P × R × T)/100 ⇒ Interest = (18,000 × R × 2)/100 Statement I alone is not sufficient to answer the question. For statement II: Amount = 23,400 Statement II alone is not sufficient to answer the question. But combining both the statements I and II Principal = 18,000, Amount = 23,400, Time = 2years Interest = 23400 – 18000 = 5400 ⇒ Interest = (18,000 × R × 2)/100 ⇒ 5400 = (18000 × R × 2)/100 ⇒ R = 5400/360 ⇒ R = 15% ∴ Length = 12, Breadth = 8, Height = 4 ∴ Volume = lbh ⇒ 12 × 8 × 4 ⇒ 384 cm3 Statement I and II is sufficient to answer the question. For statement III: Let Principle be x, Amount = 3x, Time = 40/3 years Interest = 3x – x = 2x Interest = (P × R × T)/100 ⇒ 2x = (x × R × 40)/300 ⇒ R = 15% Statement III alone is sufficient to answer the question. Statement I and II together or statement III alone is sufficient. |
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