Math, asked by heammahe, 1 day ago

find the compound interest on Rupees 81250 at 12% annum for 12 and half year
please help I will mark you brain list​

Answers

Answered by 24x7answers
0

Answer:

Given:

Present value =₹ 31250

Interest rate =8% per annum

Time =1

2

1

year =3/2 year and compounded half-yearly

To find the amount we have the formula,

Amount (A)=P(1+(r/100))

n

where P is present value, r is rate of interest, n is time in years.

Now substituting the values in above formula we get,

∴A=31250(1+(8/2)/100)

3

⇒A=31250(1+4/100)

3

⇒A=31250(1+1/25)

3

⇒A=31250(26/25)

3

⇒A=31250×17576/15625

⇒A=₹ 35152

∴ Compound interest =A–P

=35452–31250=₹ 3902

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Answered by dkchakrabarty01
0

Answer:

Amount for 12 years=P(1+12/100)^12=P(1.12)^12

Interest for 12 years =P(1.12)^12-P=P{1.12^12-P}

=P{(1.12)^12-1}

Interest for 1/2 years =P×(12/100)×(1/2)=P×0.06

Total interest for 12 and half years=

P{(1.12)^12-1+0.06}=P(3.39-1+0.06=P×2.45

=81250×2.45=199062.50 Ans

Don't do for such a big number of power 12

Main thing is for 12 years, you will use compound interest formula and for 6 months you will use simple interest formula and then will add them.

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