Math, asked by alapnakhatana, 11 months ago


A sum of money amounts to +52,080 in 2 years and to 377,280 in 7 years, at simple interest. Find the sum and rate percentage of interest.

Answers

Answered by iDarshanKumar
10

Answer:

Principal: ₹4200/-

Rate of interest @12%

Step-by-step explanation:

Given :

Principal + Interest for 7 years = ₹77280

Principlal + Interest for 2 years = 352080

Finding the Interest for 5 years :

Interest for 5 years =₹ (77280-52080) = ₹25200

Find the Interest for 2 years :

Interest for 1 years 5040

Interest for 2 years = (5040 x 2) = 10080

Finding the principal :

Principal = 52080 - Interest for 2 years = ?

₹(52080 - 10080 ) = ₹42000

Finding the rate percent :

Rate = (100 x Interest for 2 years)/(principal time) %

= (100 x 10080)/(42000 x 2) %

= 1008000/84000 %

= 12 %

Hence, Principal = ₹42000 Rate percent = 12 %.

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