cptstudent (education) (31 Points)
27 February 2014Find the rate percent per annum if Rs.200000 amount to Rs.231525 in 1½ year interest being compounded half-yearly.
231525 200000 = (1 + i) 3
1.157625 = (1 + i) 3
(1.05) 3 = (1 + i) 3
i = 0.05
please explain the above steps.... how to get 1.05 .... how to take root or to divide.... please exppalin
231525/200000 = (1+i)^3
or, (1.157625)^1/3-1 = i
or, 1.0500 -1 = i
or, i = .0500 * 100 = 5 %
Note: STEPS
1) Do Square root of 1.157625 [12 TIMES Simaltaneously]
Results will be, from above calculation 1.00003573561
2) Substract 1 from above calculation
Results will be, from above calculation 0.00003573561
3) Multiple by 1 and then divide by 3 { due to 1/3 in power}
Results will be, from above calculation 0.00001191187
4) Now add 1 to above results
Results will be 1.00001191187
5) Finally now do ' *= ' {MULTIPLY EQUALTO} [12 TIMES Simaltaneously]
i.e PRESS Multiply & Equalto Buttom respectively for 12 times continuously
Results will be 1.05000057932
6) Substract 1 from above result & multiply by 100 respectively
i.e. (1.050000-1 )*100 = 5.00000% [ ANSWER]
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