Question 2071 – Nielit Scientific Assistance CS 15-10-2017
November 9, 2023Question 7667 – UGC-NET DEC-2019 Part-2
November 9, 2023Question 6399 – Nielit Scientific Assistance CS 15-10-2017
The difference between the compound interest and the simple earned at the end of 3 rd year on a sum of money at a rate of 10% per annul is Rs. 77.5. What is the sum?
Correct Answer: B
Question 1 Explanation:
Let principal be ‘x’
S.I = P T R / 100
S.I = X * 3 * 10 / 100
C.I = [ P (1 + (R / 100)T) – P]
C.I = [ X (1+ (10 / 100)3) – X]
C.I = 331X / 1000
Difference between Compound interest and Simple interest is 77.5
( 331X / 1000 ) – ( 3X / 10) = 77.5
31x / 1000 = 77.5
x = 2500.
S.I = P T R / 100
S.I = X * 3 * 10 / 100
C.I = [ P (1 + (R / 100)T) – P]
C.I = [ X (1+ (10 / 100)3) – X]
C.I = 331X / 1000
Difference between Compound interest and Simple interest is 77.5
( 331X / 1000 ) – ( 3X / 10) = 77.5
31x / 1000 = 77.5
x = 2500.
Rs. 3,500
Rs. 2,500
Rs. 3,000
Rs. 2,000
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