Math, asked by alakmarshakir8, 1 month ago

a sum of money amounts to rs 7475 in 3 years and rs 7800 in 4 years at the rate of simple
interest. the rate of interest is?​

Answers

Answered by gangasagarghume1985
0

Answer:

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Answered by jidnyasachorge
3

Step-by-step explanation:

Interest for 1 year = 7800 - 7475

= 325 Rs

If a sum becomes a1 in t1 years and a2 in t2 years the rate of interest.

= 100(a2 - A1)/ a1.t2 - a1.t1

= 100(7800-7475)/ 7475×4 - 3×7800

= 32500/6500

=5%

Principal = SI × 100/ Time × Rate

= 325×100/ 1×5

= 6500 Rs

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