Question

Heni menabung di sebuah bank sebesar RP3.000.000,00.setelah lima bulan uang heni menjadi RP3.258.750,00.tentukan

b.besar tabungan heni setelah 2,5 tahun

Mohon bantuannya kaka-kaka,dengan cara2nya:)

Answer 1

`Rp\ 4,552,500`

Explanation:

The question in English is

Heni placed in a bank the amount of Rp. 3,000,000.00. After five months, she had a total of Rp. 3,258,750.00.

How much money will Heni have after 2.5 years?

step 1

Find the rate of interest

we know that

The simple interest formula is equal to

`A=P(1+rt)`

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

in this problem we have

`t=5/12\ years\\ P=Rp\ 3,000,000\\ A=Rp\ 3,258,750\\r=?`

substitute in the formula above

`3,258,750=3,000,000(1+r(5/12))`

`r=[(3,258,750/3,000,000)-1]\(5/12)`

`r=0.207`

step 2

For t=2.5 years

`A=3,000,000(1+(2.5)(0.207))`

`A=Rp\ 4,552,500`