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Hint: We will assume the sum invested as x rupees. We have been given that it becomes triple after 3 years which means it becomes 3 x. Now, we know that the final amount = principal amount + simple interest. So, we will find the simple interest from that and using the formula, $\text{simple interest}=\dfrac{\text{principal amount}\times \text{time}\times \text{rate}}{100}$, we will find the rate of interest. Complete step-by-step answer: Note: There is a possibility that the students think that the simple interest becomes triple of the principal amount, that is simple interest is 3 x. So, in further calculations for finding the rate of interest, they will end up with, $rate=\dfrac{3\times 100}{16}\Rightarrow 18.75\%$. But students should read the question carefully to understand that the sum becomes triple, which means the principal amount becomes triple after 16 years. At what rate percent per annum will a sum of money triple itself in 10 years? No worries! We‘ve got your back. Try BYJU‘S free classes today! Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses No worries! We‘ve got your back. Try BYJU‘S free classes today! No worries! We‘ve got your back. Try BYJU‘S free classes today! No worries! We‘ve got your back. Try BYJU‘S free classes today! Solution The correct option is D20%2P=P×R×10100 ⇒R=20%Home At which rate percent per annum simple interest will a sum triple itself in 16 years?a 12 %b 10.5 %c 11.5 %d 12.5 % Question Open in App Solution Correct option is D. 12.5%Let the sum be P, Rate of interest be R% and Time be 16 yearsTherefore, Amount =3×P=3PHence, SI=A−P=3P−P=2P⇒SI=PRT100⇒2P=P×R×16100⇒R=2P×100P×16=12.5%Suggest Corrections 7 Same exercise questions Q. Mark the correct alternative in each of the following: By what number should 134 be divided to get 212? (a) 37 (b) 125 (c) 710 (d) 137 Q. Mark the correct alternative in each of the following: 5 14-313= (a) 1223 (b) 2 (c) 11112 (d) 1112 Q. Mark the correct alternative in each of the following: The improper fraction 2125 in decimal form is (a) 2.4 (b) 2.04 (c) 2.004 (d) None of these Q. Mark the correct alternative in each of the following: If the rational numbers -23 and 4x represent a pair of equivalent rational numbers, then x = (a) 6 (b) −6 (c) 3 (d) −3 Q. Mark the correct alternative in each of the following: -713--8 15= (a) -239195 (b) 29195 (c) -29195 (d) None of these View More At what rate of interest does a simple interest rate triple in 10 years?⇒R=20%
At what rate of interest compounded annually will an investment triple in 10 years?Thus at a rate of 11.612% ( approx). Your sum will get tripled by 10 years(if compounded Anually).
At what rate percent per annum will a sum triple in 3 years?R=12. 5%
At what rate percent per annum simple interest will a sum double itself in 10 years?As we know the simple interest means principle amount subtracted from final amount i.e. Hence the required rate in which the sum becomes double itself in 10 years is 10%.
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