Question

If (1.1025)^25 = 11.468, then ? (1.05)^n (where n varies from 1 to 49) is

Answer 1

Step-by-step explanation:

Square 1.05 first. This is an easy square to calculate (see below). 1.1025. ... And voila! your answer is [72 ][25]. ... can I determine, in less than 15 minutes and without a calculator, which one of and is bigger?

Answer 2

Answer: 209.34

Step-by-step explanation: According to the given question as we know, (1.1025)^25 = 11.468

As given $(1.1025)^{25}=11.468$ .....(1)

So now n=1, $(1.05)^{n} =(\frac{(1.1025)^{25}-1 }{1.05-1} )$

                                $=(\frac{10.4673}{0.05})$ By using equation (1)

As n=1 $(1.05)^{n} =209.34$

Hence, the correct answer is 209.34

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