Question

7. Find the rate per cent per annum, if compounded
yearly
(i) Principal - P196, Amount - 225,
time, - 2 years.​

Answer 1

Answer:

7.3979591837

Step-by-step explanation:

Data: P - 196

A - 225

T - 2 years

I - ?

R- ?

Amount = Principal + Interest

225 = 196 + I

225 - 196 = I

29 = Interest

so we find rate of interest ...

principal × Rate of interest × Time

I = -------------------------------------------------

100

P × R × T

I = -------------------

100

196 × R × 2

29 = ---------------------

100

29 × 100

--------------

196 × 2

ans - 7.3979591837

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