Question
If a sum of money deposited in a bank at simple interest is doubled in 6 years, then after 12 years, the amount will be
Answer: Option A
Answer: (a)Case I,Principal = Rs.xInterest = Rs.xTime = 6 yearsRate = ${Interest × 100}/\text"Principal × Time"$= ${x × 100}/{x × 16} = 50/3%$ per annumCase II,Interest = ${x × 12 × 50}/{100 × 3}$ = Rs.2xi.e., Amount is thrice the principal.
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Answer: (a)Case I,Principal = Rs.xInterest = Rs.xTime = 6 yearsRate = ${Interest × 100}/\text"Principal × Time"$= ${x × 100}/{x × 16} = 50/3%$ per annumCase II,Interest = ${x × 12 × 50}/{100 × 3}$ = Rs.2xi.e., Amount is thrice the principal.
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