RRB NTPC Mains or Stage 2 Model Paper 9 with solutions

Question : 5 of 120

Marks: +1, -0

The difference between C. I. (Compound Interest) and S.I. (Simple Interest) on a sum of ₹ 4,000 for 2 years at 5% p.a. payable yearly is

Solution:

(b) Required difference

={PR^2}/{(100)^2}

⇒{4000× 5 ×5} /{100 ×100}=₹10

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