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► MCQ Exam ON : Environmental Protection
At what rate percent per annum will the simple interest on a sum of money be 2/5 of the amount in 10 years?
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Hint: Assume that the principal amount is ‘x’ and the rate of interest per annum is $y%$. Calculate the simple interest using the formula $SI=\dfrac{P\times R\times T}{100}$. Write the equation based on the data given in the question and simplify the equation to calculate the rate of interest.Complete step-by-step solution - Note: We can also solve this question by assuming that the principal is Rs.100 and calculating simple interest on this principal. Write equations based on the data given in the question and solve them to calculate the rate of interest per annum. The value of the rate of interest will be the same as above.
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At what rate per annum will the SI on a sum of money be 2 5?Simple interest=SI=PNR/100 whereP=principle=100; N=period=10 years; R=rate of interest=? At 15% per annum rate of interest the principal be 2/5 of the amount in 10 years.
At what rate percent per annum will the simple interest on a sum of money be 2/5 of the amount in 10 years a 4% B 2 5 3 C 6% D 2 6?or r=520=4%
At what rate percent per annum will a sum of money becomes 5 by 4 of itself in 10 years?The rate of interest per annum is 25%.
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