√9 is __________ number *
1 answer:
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Answer:
The Time in which sum of money double itself is 14 years .
Step-by-step explanation:
Given as :
The principal money = P
The rate of interest = R = 5 % payable half yearly
The Amount = Double of principal
Let The time in which sum become double = t years
I.e A = 2 P
<u>From Compounded method</u>
Amount = principal ×
or, 2 P = P ×
Or, 2 =
Or, Taking log with base 10 both side
So, 2 =
or, 0.3010 = 2 t × 1.025
Or, 0.3010 = 2 t × 0.010723
Or, 0.3010 = 0.021446 t
∴ t =
I.e t = 14.03 years ≈ 14 years
So, The time period = T = 14 years
Hence The Time in which sum of money double itself is 14 years . Answer