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Question

At what rate percent per annum  C.I will ₹ 2000 amount to ₹ 2662 in 3 years 



A

Rs.430

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B

Rs.432

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C

Rs.442

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D

Rs.452  

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Solution

The correct option is A

Rs.432


Given that A =  ₹ 2662 , P = ₹ 2000 and n = 3 years

Let the Rate of Interest be r 

A=P ( 1+r100)n
  
2662  = 2000 ( 1+r100)3

13311000 =  ( 1+r100)3

(1110)3 = ( 1+r100)3
(1110) = ( 1+r100)
(1110) = ( 100+r100)
110 = 100 + r
 r = 10 %


Mathematics

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