Question

@HARTANN

Answer 1

@hartnn

Answer 2

on a certain some the coumpound interest in 2 yr amounts to 4240 if the rate for 2 successive yr are 10 and 15 % find the sum

Answer 3

@hartnn

Answer 4

@ganeshie8

Answer 5

you wrote
"on a certain some " ?

Answer 6

sorry its sum

Answer 7

lets say, a certain sum

Answer 8

ok :)

Answer 9

could u now help me

Answer 10

what i typed is evrything the sum says

Answer 11

lets assume it reckons yearly

Answer 12

so n = 1

Answer 13

i think its 2

Answer 14

yes now?

Answer 15

so whats the answer?

Answer 16

and i think its r/100

Answer 17

is 1 + r/100 and not r/n

Answer 18

7774.63?

Answer 19

that the answer provided

Answer 20

its next to the sum

Answer 21

ok let me look at this again

Answer 22

one moment

Answer 23

remember they only give the interest accrued.

Answer 24

4240+P = P ( 1 + 10/100)*(1 + 15/100)

Answer 25

right 4240 is just the interest
I should have used
interest = 4240

P(1 + 10/100 ) (1 + 15/100) - P = 4240

Answer 26

total investment - principal = interest accrued

Answer 27

P [ (1+ .1) (1+.15) - 1 ] = 4240

P = 4240 / .265

Answer 28

can you answer it now?

Answer 29

I did not get 7774