Question

Help!!!! (with part B, I need help with that)

An investment fund has increased in value by a total of 21% over the last 2 years.

a) A man invested $1000 in the fund 2 years ago. What is it worth now?

b) Calculate the yearly rate of interest assuming it was:

i) Compound interest
ii) Simple interest

Answer 1

okay..let the fund was =x initially

Answer 2

now first by simple interest

Answer 3

\[interest=\frac{ amount *rate *time }{ 100}\]

Answer 4

it is given fund increase by 21 % after 2 year
so after 2 year fund = x+x*21/100

Answer 5

okk??

Answer 6

Are you mad?

Answer 7

why???

Answer 8

Because you're saying 'okk??' It made me think you're angry or something. Nevermind

Answer 9

lol i mean u got me ????

Answer 10

u got what i told upto here??

Answer 11

Yeah I understand :)

Answer 12

that what i mean ??

Answer 13

Yes :3

Answer 14

so after 2 year fund = x+x*21/100
final amount = x+x*21/100
initail = x
can u tell me what amount is add to x in last 2 year

Answer 15

I'm getting confused....

Answer 16

u initailly had x now u had x+x*21/100
what amount is added to x

Answer 17

so the interest is 1000*21%*2 years right?

Answer 18

like earlier u had 10 dollar now u have 25
what amount added to initia

Answer 19

15

Answer 20

smilarly do for x

Answer 21

tell me what increment happend in x in 2 year

Answer 22

21% ?

Answer 23

how

Answer 24

x+x*21/100-x=??

Answer 25

\[x+x*\frac{ 21 }{ 100 }-x\]

Answer 26

now can u tell buddy :??

Answer 27

I don't know... 21?

Answer 28

\[x-x+\frac{ 21*x }{ 100 }\]

Answer 29

x will get cancelled and we left with
\[\frac{ 21*x }{ 100 }\]

Answer 30

I see

Answer 31

so this is our interest

Answer 32

210?

Answer 33

Is 210 the interest?

Answer 34

what??

Answer 35

how u got it ??

Answer 36

21*x/100 i told u na

Answer 37

\[\frac{ 21x }{ 100 }=\frac{ x*r*2 }{ 100 }\]

Answer 38

r=rate
t=2 year
principle= x

Answer 39

Yes

Answer 40

divide both side by x

Answer 41

So x gets cancelled?

Answer 42

21/100=(r*2)/100

Answer 43

yeah now multiply by 100

Answer 44

So the answer is??

Answer 45

after multiplying by 100 what we will get

Answer 46

You tell me, I don't know

Answer 47

u only need ans :(

Answer 48

But I don't know :(