Q132 of 140 Page 196

Rs 9000 becomes Rs 18000 at simple interest in 8 years. Find the rate per cent per annum.

Given, P = 9000, A = 18000 and T = 8year


⇒ We know that A = P + I


⇒ I = A-P


= 18000-9000


= 9000


⇒ we know that, I =


⇒ R =


=


= 12.5%


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