Interest compounded quarterly: amount, interest or time

This type of question, asked 4 times: CDS 2 2022, CDS 2 2023, CDS 1 2025, CDS 1 2026. All 4 questions below, oldest first.

Try each one first, then open its answer.

Question 1
CDS 2 2022
40 $If C is the compound interest on Rs. 10,000 for one year at 4% per annum when compounded quarterly, then which one of the following is correct ?$
Tap an option to check your answer.
Question 2
CDS 2 2023
5 $A person borrowed Rs. 10,000 at 12% rate of interest per annum compounded quarterly for a period of 9 months. What is the interest paid by him to settle his account after 9 months ?$
Tap an option to check your answer.
Question 3
CDS 1 2025
76 $How much will Rs. 10,000 amount to in one year's time at 4% rate of interest per annum if the interest is compounded once in every three months ? (take approximate value)$
Tap an option to check your answer.
Question 4
CDS 1 2026
12 $In what duration of time will Rs. 3300 become Rs. 3399 at 12% per annum interest compounded quarterly ?$
Tap an option to check your answer.

Question 1