SI: time, rate or principal from principal, amount (or interest) and the other
This type of question, asked 13 times: 18 Jul 2023 S3, 20 Jul 2023 S3, 20 Jul 2023 S4, 25 Jul 2023 S3, 26 Jul 2023 S2, 27 Jul 2023 S3, 11 Sep 2024 S2, 17 Sep 2024 S2, 17 Sep 2024 S3, 19 Sep 2024 S2, 24 Sep 2024 S1, 26 Sep 2024 S2, 19 Sep 2025 S2. All 13 questions below, oldest first.
Try each one first, then open its answer.
Question 1
18 Jul 2023 S3
74In how many years will a sum of ₹9,500 amount to ₹11,780 at the rate of 8% per annum at simple interest?Tap an option to check your answer.
Question 2
20 Jul 2023 S3
57A person invests ₹9,840 at 5% per annum simple interest to obtain a total amount of ₹12,300. For how many years did he invest the sum?Tap an option to check your answer.
Question 3
20 Jul 2023 S4
74A sum of ₹30,000 becomes ₹38,400 after being invested at a simple interest of per annum in how many years?Tap an option to check your answer.
Question 4
25 Jul 2023 S3
63The rate of simple interest for which ₹9,000 will amount to ₹10,200 in 4 years is:Tap an option to check your answer.
Question 5
26 Jul 2023 S2
66The interest earned on ₹21,000 in 3 years at simple interest is ₹6,400. What is the rate of interest per annum?Tap an option to check your answer.
Question 6
27 Jul 2023 S3
74In what time will ₹3,720 amount to ₹5,282.4 at 12% simple interest per annum?Tap an option to check your answer.
Question 7
11 Sep 2024 S2
75How many years will it take for ₹8,400 to amount to ₹11,928 at a simple interest rate of 7% per annum?Tap an option to check your answer.
Question 8
17 Sep 2024 S2
71What is the rate of interest per annum for simple interest at which ₹1,040 amounts to ₹1,230 in years?Tap an option to check your answer.
Question 9
17 Sep 2024 S3
75In how many years will ₹7,200 amount to ₹8,928 at a simple interest rate of per annum?Tap an option to check your answer.
Question 10
19 Sep 2024 S2
75A sum of ₹1,456, when invested for ten years, amounts to ₹2,366 on maturity. Find the rate of simple interest per annum that was to be paid on the sum invested.Tap an option to check your answer.
Question 11
24 Sep 2024 S1
67In how much time (in years, rounded off to 2 decimal places) will ₹10,800 amount to ₹24,800 if invested at simple interest at the rate of per annum?Tap an option to check your answer.
Question 12
26 Sep 2024 S2
60What principal would amount to ₹21,420 in 2 years at the rate of p.a. simple interest?Tap an option to check your answer.
Question 13
19 Sep 2025 S2
58At what rate of simple interest will ₹2,000 become ₹2,520 in 4 years?Tap an option to check your answer.