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Hint:- In 8 years money from Interest will be come equal to the principal Let the initial amount of money invested will be Rs. x. So, now we will use a simple interest formula. So, putting the values in the above formula. We will get, Hence, the rate of interest to double a money in 8 years will be 12.5% per annum. Note:- Whenever we came up with this type of problem where we are asked
to 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 A 5%Given, time = 20 years. Let the sum invested be ₹ 100. So, the Amount received after 20 years = ₹ 200. We know that, Principal + Interest = Amount. Hence, Interest = Amount - Principal = ₹ (200-100) = ₹ 100. The Simple Interest earned on a sum of ₹ P for a period of T years at the rate of R% p.a S.I is given by P×R× T100. So, ₹ 100 = 100× R×20100 Hence, R = 5%.Solve Textbooks Question Papers At what rate of simple interest will a sum of money doubles itself?Hence, R = 5%. Q.
At what rate Percent of simple interest will a sum of money doubles itself in 12 years?∴ The rate of interest is 25/3%.
At what rate Percent of simple interest a sum will double itself in 16 years?Then S.I. = P and T = 16 yrs. Rate = 100 x P/P*16% = 6 ¼ % p.a.
At what rate of interest a sum of money doubles itself in 10 years in simple interest?Hence, it will take 10 years for the sum of money to double itself with the rate of 10% per annum simple interest.
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